LED light global positioning and routing communication system

Information

  • Patent Grant
  • 9755743
  • Patent Number
    9,755,743
  • Date Filed
    Tuesday, February 2, 2016
    8 years ago
  • Date Issued
    Tuesday, September 5, 2017
    7 years ago
Abstract
An LED light and communication system includes at least one optical transceiver, the optical transceiver including a light support and a processor. The light support has a plurality of light emitting diodes and at least one photodetector attached thereto. The processor is in communication with the light emitting diodes and the at least one photodetector, where the processor is constructed and arranged to illuminate at least one of the light emitting diodes to generate a light signal which in turn includes at least one embedded data packet. The at least one embedded data packet communicates global positioning system (GPS) location information.
Description
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT

Not applicable.


FIELD OF THE INVENTION

This invention pertains generally to multiplex communications, and more particularly to versatile communications incorporating GPS locations into data packet headers and trailers. The data packet headers may then be transmitted based upon physical location, and various comparisons may be made between predetermined physical locations and electronic markers and position indicators used for many diverse, critical purposes. In more specific embodiments, Visual Light Embedded Communications (VLEC) are combined with GPS headers to provide many unexpected and novel benefits.


DESCRIPTION OF THE RELATED ART

Communication and data sharing have been important to humans throughout history. Cave writings, letters, books, magazines, newspapers, telegrams, telephones, fax machines, and Internet are all examples of the importance of communication and data sharing. As speed, accuracy, distance, and sometimes size of the desired communication. Increasingly, people are desiring this communication to be possible anywhere, anytime, whether on the go or just in a unique setting.


Currently, the main wireless method of communication uses radio waves to transmit or receive information. Wireless access can be gained through local, low-power transmitters, or through higher power cell phone towers which can be many miles apart. The cell phone system poses several well-known issues, the first of which is coverage. Presently, there are not enough towers to provide coverage in all areas, creating a likelihood of dropped calls in certain geographic areas. The possibility of dropped calls or dropped signal is a distinct disadvantage, and, in fact, could pose a hazard in the case of an emergency situation. The issue of full coverage is further augmented by a sensitivity to various types of radio frequency interference which also interferes with reception. Radio frequency interference and weak signals also raise the issue of one receiving false information, such as in the case of alternative information being transmitted or key information being left out or dropped in the case of weak or variable transmissions. Additionally, cell phone communications systems are quite limited in bandwidth or capacity for high-speed data communications.


Position determination may commonly be made using either of two existing systems. One is satellite-based, known as the Global Positioning System (GPS). Not only are satellite systems expensive and subject to atmospheric interference, they have other limitations as well. One such limitation is accuracy. GPS is accurate to within a couple hundred feet horizontally, but many drivers using GPS systems still find themselves frustrated when the GPS provides them with inaccurate directions, either causing them to arrive at the wrong destination, or being told to make a U-turn after following directions because the GPS is not accurate enough to correctly read the street that vehicle is on. Furthermore, current GPS devices do not have the capacity to store enough information to provide drivers with more than a crude map, making the identification of where one is unnecessarily difficult. Systems have been developed that conceptually provide photographic or even three-dimensional mapping and guidance, but storage of such data drastically exceeds portable GPS equipment capacity. Finally, satellites are not always accessible when there is not a line of communication with the satellite. For exemplary purposes, car-ports, overhangs, underpasses, garages, buildings and many other shelters and covers can interfere with or completely inhibit satellite reception. These communications can be skewed or blocked undesirably.


The second system uses triangulation from cell phone towers. This technique suffers from similar limitations of accuracy and coverage as the satellite system. Whether using GPS systems or cell phones, triangulation techniques are typically only accurate within several hundred feet. Horizontally, this precision is adequate for many applications. However, vertically several hundred feet could encompass twenty floors in an office, or apartment building, or many floors in a parking garage. In the case of an emergency, such as a fire or a medical emergency, knowing which floor or level can make a crucial life-or-death difference.


SUMMARY OF THE INVENTION

In some embodiments, the present invention is generally directed to light emitting diodes (LEDs) and applications thereof. In particular, some embodiments of the present invention are directed to using LEDs to generate light signals including data packets comprising global positioning system (GPS) location information.


GENERAL DESCRIPTION OF THE INVENTION

According to the invention, there is provided an illumination apparatus that is capable of illuminating a space and simultaneously capable of communicating through visible light directly with a number of adjunct devices. In addition to human communications, communications with adjunct devices may effect various convenience, safety, global positioning system routing systems (GPSRS), traffic control, energy management and related functions.


The present invention creates a much more reliable and accurate comparison for global positioning system (GPS) or instrument flight rules (IFR), and similar systems and services. Additionally, the present invention verifies data in real time through such a comparison. The present invention also incorporates improved real-time tracking of addresses which can be stationary or dynamic in their physical location, especially and is useful for identification of location based services that require the exact location of a vehicle or individual such as emergency vehicle repair services. The present invention ties data packets to geographic locations on a real-time basis rather than using cyber translations. As a corollary thereto, the present invention in real-time recognizes packeted information and the location of a vehicle or individual using accommodating technology. The present invention also includes the ability to use “mesh-networking,” reducing data packet traffic on the “Network Backbone.” The present invention incorporates the use real time locating systems for humans, permitting electronic monitoring and locating in or after emergency situations, or for simple real-time locators. Similarly, inanimate objects such as vehicles may be tracked through the network and accounted for automatically, using less sophisticated communications tags. Additionally, the present invention has the ability for unauthorized infrastructure detection, using an address system identifying the location of the device (GPS), a unique serial number, and a governing infrastructure list which may “lock out” devices not on the governing list. On an open road that is particularly useful because all can drive on the road but only those with authorization may access any data packets and only those with higher levels of clearance may alter the information. The present invention additionally includes sufficient communication bandwidth to incorporate smart video integration. Furthermore, the present invention has the ability to track an origin address upon receiving it, verifying the source in real time.





BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing and other objects, advantages, and novel features of the present invention may be understood and appreciated by reference to the following detailed description of the invention, taken in conjunction with the accompanying drawings, in which:



FIG. 1 illustrates a projected environmental view of one embodiment of a Global Positioning System Routing System or GPSRS system.



FIG. 2 illustrates a data packet structure incorporating GPS location information into the header and trailer.



FIG. 3 illustrates from top view a street lamp illumination and communications system operative with a vehicle traveling therein.



FIG. 4 illustrates an isometric plan view of an embodiment of an information transmission corridor in accord with the teachings of the present invention.



FIG. 5 illustrates an isometric plan view of an embodiment of a street light post light post in accord with the teachings of the present invention.



FIG. 6 is a detail view of a name tag in an exemplary embodiment of the present invention.





DESCRIPTION OF THE PREFERRED EMBODIMENT

Manifested in the preferred embodiment GPSRS 100, the present invention provides visible light in combination with embedded communications. The embedded communications in accord with an embodiment of the invention further incorporate GPS routing information into communications networks. In accord with the present invention, there are two types of lights: static or stationary lights, such as a street lamps 104-109, or dynamic moving lights such as automobile lights found in vehicles 102 and patrol car 103. Stationary lights such as street lamps 104-109 are fitted with LED illumination and integral data communications, referred to herein as Visible Light Embedded Communications (VLEC). The physical location of each stationary light, in the form of GPS coordinates, is stored within that light in electronic form, preferably using Read-Only Memory (ROM) or the like, such that the address may not later be altered or tampered with. An address is a GPS location of the stationary light along with its unique manufacturer's embedded serial number. A computational system incorporating a microprocessor or the like is programmed to provide necessary communications functions to communicate through modulation of light emanating from the stationary light when interrogated by a client optical device. The client optical device may be another stationary light, or may alternatively be a moving light.


The preferred embodiment GPSRS 100, through retrieval of the GPS location, is capable of location determination resolution of a moving light to a single light fixture, and the light fixture is readily identifiable by GPS coordinates and serial number. Therefore, embodiments designed in accord with the teachings of the present invention have much more exact pinpointing than heretofore available. GPSRS 100 may be used to locate a person or vehicle immediately, even in a large area and/or among a large crowd, and can keep track of a large population simultaneously. Large bandwidth is afforded by optical communications, and permits video signals to be integrated where so desired.


Since location may be relatively precisely discerned, street lamps 104-109 or other appropriate street lamps may in one embodiment be configured to change color, flash, or otherwise be visually changed or manipulated to assist with directional guidance, personnel or intruder identification, energy management, or even to facilitate the meeting and connection of individuals. Each street lamp will incorporate at least one and possibly a plurality of optical transmitter LEDs and at least one and possibly a plurality of optical detectors.


A preferred optical transmitter, in accord with the present invention, preferably comprises at least one optical LED, and most preferably comprises an RGB LED array, designating that the LED includes Red, Green, and Blue which are the primary additive colors from which all other colors including white may be produced. For exemplary purposes only, an optical transmitter may comprise discrete LEDs of each primary color, or may alternatively be a single RGB LED array integrated onto a common die group, taking the physical form of a single LED. Furthermore, more than one RGB LED array may be integrated upon a single die group or within a common package or optical transmitter, as may be deemed most appropriate. In practice, there is no limit to the number of RGB LEDs that may be used, other than physical size and available space limitations, and thermal dissipation capacity and power requirement constraints.


By controlling the relative power applied to each one of the RGB LED arrays, different colors may be produced. Color televisions and computer monitors, for example, incorporate very small red, green and blue (RGB) dots adjacent to each other. To produce white regions on the screen, all three RGB dots are illuminated. Black dots are the result of none of the RGB dots being illuminated. Other colors are produced by illuminating one or more of the dots at different relative levels, or alternatively controlling how many closely adjacent dots of one primary color are fully illuminated relatively to the other two primary colors. The display of different colors can be used as a part of a visual signaling system, using particular colors as indicators of particular information.


While other options exist for producing white light from LEDs, the use of an RGB LED absent of phosphors is preferred for most applications of the present invention. Not only is color of the light easily controlled using well-known RGB technology, but also by their very nature phosphors tend to slow down the rate at which an LED may be illuminated and extinguished due to phosphor latencies. For the purposes of the present invention, where an optical communications channel is created using optical transmitter LEDs, higher data transfer rates may be obtained with more rapid control of illumination levels. Consequently, if phosphors are used in the generation of light, and if faster data exchange rates through optical communications are desired, these phosphors will preferably be very fast lighting and extinguishing.


An optical detector may either be a broad spectrum detector or alternatively color-filtered or sensitive to only a single color. The detector will be any of the many known in the art, the particular selection which will be determined by well-known considerations such as sensitivity, reliability, availability, cost and other consideration.


Greater details regarding the optical communications are found in our commonly assigned and co-pending patent applications identified below and filed simultaneously herewith, the contents and teachings which are incorporated herein by reference in entirety.


This application is related to the patent application entitled “LED Light Communication System,” patent application Ser. No. 12/126,529, filed May 23, 2008, issued as U.S. Pat. No. 8,188,878 on May 29, 2012 which is incorporated by reference herein in its entirety. The present application is also related to the patent application entitled “LED Light Dongle Communication System,” patent application Ser. No. 12/126,227, filed May 23, 2008, issued as U.S. Pat. No. 8,687,965 on Apr. 1, 2014 which is incorporated herein by reference in its entirety. Further, the present application is related to the patent application entitled “Building Illumination Apparatus with Integrated Communications, Security and Energy Management,” patent application Ser. No. 12/126,342, filed May 23, 2008, now abandoned, which is incorporated herein by reference in its entirety. The present application is related to the patent application entitled “LED Light Interior Room and Building Communication System,” patent application Ser. No. 12/126,647, filed May 23, 2008, now abandoned, which is incorporated by reference herein it its entirety. Further the present application is also related to the patent application entitled “LED Light Broad Band Over Power Ser. No. 12/126,469, filed May 23, 2008, now abandoned, which is incorporated by reference herein in its entirety.


Applicant additionally incorporates by reference herein patent application Ser. No. 10/646,853, filed Aug. 22, 2003, U.S. Pat. No. 7,439,847, which claims the benefit of provisional patent application nos. 60/405,592 and 60/405,379, both filed Aug. 23, 2002, the disclosures of all three being expressly incorporated herein by reference. Further, Applicant incorporates by reference herein patent application Ser. No. 12/032,908, filed Feb. 18, 2008, now abandoned, which is continuation of patent application Ser. No. 11/433,979, filed May 15, 2006, now abandoned, which is a continuation of patent application Ser. No. 11/102,989, filed Apr. 11, 2005, now issued U.S. Pat. No. 7,046,160, which is a division of patent application Ser. No. 09/993,040, filed Nov. 14, 2001, now issued U.S. Pat. No. 6,879,263, which claims the benefit of provisional patent application No. 60/248,894, filed Nov. 15, 2000, the entire contents of each being expressly incorporated herein by reference.


Street lamps 104-109 may be used to transmit one or more kinds of data, including identity, location, audio and video information, and various data signals. The data signals may arise through communications within a Local Area Network (LAN), sometimes referred to as an Intranet. The data may additionally or alternatively arise through communication with a Wide Area Network (WAN), commonly describing a network coupling widely separated physical locations which are connected together through any suitable connection, including for exemplary purposes but not solely limited thereto such means as fiber optic links, T1 lines, Radio Frequency (RF) links including cellular telecommunications links, satellite connections, DSL connections, or even Internet connections. Generally, where more public means such as the Internet are used, secured access will commonly separate the WAN from general Internet traffic. The data may further arise through communications with the Internet.



FIG. 2 illustrates a sample data packet 140, having a destination address 141 that incorporates a desired GPS destination. LTA (Last light transceiver Transmission Address) 142, addition overhead 143, data 144, overhead 145 and origin address 146 round out the sample data packet 140. Since data packet 140 includes in destination address 141 a GPS identifier, each street lamp can simply read the address, and based upon the address which is a physical address, determine which direction to forward the data packet, to an appropriate adjacent street lamp. If the stationary street lamp has an Internal Location Address (ILA) closer to the data packet destination address than the LTA code stored within the data packet address code, then the stationary street lamp will insert its ILA code into the data packet address code as the new LTA code, and then forward the entire data packet to the next closer street lamp. No central look-up or translation is required of the origin and destination addresses, vastly reducing the computational effort of forwarding data packets. Furthermore, the data is communicated in a mesh-fashion, where each street lamp directly communicates with adjacent lamps and does not require central communications or processing. As a result, with little if any infrastructure required, other than VLEC illumination and appropriate processors and programming for each street lamp, signals may be quickly and directly routed from origin to destination.


Further in accord with the present invention, users of the system, which may be dynamic, may declare one or more static positions and have a dynamic position at any time. GPSRS 100 will track the user as he passes static lights, similar to that of cell phones in relation to their towers. Each user of the system can determine at any point what his static address is. A static address can be your office, your bedroom, your home, wherever it makes practical sense. The network should be comprised of a physical resolution practical for all foreseen applications. When a user leaves his static address to traverse through the infrastructure, he then becomes dynamic. If a packet of data comes to his static address, it will then be informed as to where his dynamic address is.


Techniques of forwarding and locating, considered or used for exemplary purposes with cellular telephones and other mobile systems, may be considered incorporated herein for purposes of enablement. However, in the present invention, it is further conceived that static components such as lights may preferably incorporate sufficient computer memory storage and processing capability to store basic information on each dynamic user who designates that static component as the “home” or base location. When a dynamic user leaves communication with the base location, and with each change to another static host, the dynamic user will preferably automatically communicate the current static address back to the dynamic user's base. When a data packet arrives at the static base, the base can simply change the destination address 141 to reflect the current location of the dynamic user. Once the dynamic user receives the data packet, communications may be made directly with the sender, rather than always routing through the dynamic user's base. To reduce the likelihood for dropped data packets, it is also desirable that some or all of the static components include information on recent dynamic clients. In other words, if a dynamic client changes static locations during the time a data packet is in transit from a base to the dynamic client, the packet will become lost. If, instead, the static components also track movement of dynamic clients to the next adjacent static host, then the static host would simply once more change the destination address, this time to the adjacent static host, which will then communicate the packet to the dynamic client.


Since optical communications channels 113 may be formed between any lights within optical reach, static or dynamic, a system is established where a collection of lights working together can broadcast-rather than being limited to a stationary address. Consequently, communications can occur, for exemplary purposes, between widely spaced street lights that cannot directly communicate, when such lights are bridged by a sufficient number of dynamic lights such as from automobiles 102 therebetween.


The present invention reduces overhead of infrastructure because it requires no translation. It removes the need for overhead management. Each packet knows its destination, the closest light. Presently, for example, cell phones must communicate with the closest towers, which may be many miles away, both for caller and destination, requiring many cables. With the new system, a cell phone would be informed of GPS and connect directly to the closest source.


The present invention is also simpler. According to the “last mile” concept, a large majority of the cost occurs in the last mile of transmission. With this system, the last mile is nearly free. The last mile develops itself.


The present invention has the ability to monitor in real time historically established GPS addresses at one or many street lights, and compare those addresses to currently calculated addresses. This comparison will preferably occur on a continuous basis, and can provide a cross-check for various position determining systems. Among these are the entire GPS infrastructure, and also various perhaps older airport systems such as IFR navigational tools and the like. In fact, nearly any electronic position detection system can be monitored through comparisons with established GPS locations determined at the time of set-up or installation of street lamps or other appropriate illumination devices. This monitoring can be very useful not only to detect potentially failed or improperly operating components, but also to provide emergency infrastructure in the event of jamming or skewing of the primary position locating system, irrespective of whether the jamming, skewing or malfunctions are accidental or terroristic. Desirably, if a discrepancy is detected between static devices of the present invention such as light posts 104-109 and a position determining system such as GPS or IFR devices, then a communication will preferably be initiated to notify appropriate personnel.



FIG. 3 illustrates an energy management method in accord with the teachings of the present invention, whereby when a section of road 115 is otherwise generally vacant, a large number of street lights may be dimmed or extinguished. Street lights 120-128 are preferably programmed to turn on and off as circumstances dictate. Busy intersections and metropolitan areas will have a large number of street lights. These lights, in accord with an embodiment of the invention, will have power lines with data carriers provided therewith, such as Broadband-over-Power Line (BPL) or the like. Static GPS locations are preferably encoded into each light 120-128. A vehicle 102 driving through an area with street lights could interact with and automatically illuminate only those lights needed for travel. As vehicle 102 progresses down road 115, lights behind may be no longer needed and so may be programmed to turn off Consequently, each of street lights 120-128 could function variably from 0 to 100% as needed. As is shown in FIG. 3, street lights 120, 121 significantly behind vehicle 102 are producing less illumination 220, 221. Immediately behind vehicle 102 street light 122 is also starting to decrease illumination 222. Lights 123, 124 immediately next to and close in front of vehicle 102 preferably function at, or close to 100%, producing larger amounts of illumination 223, 224. Going farther in front of vehicle 102, lights 125, 126 are most preferably not yet to full function, though close, giving off partial light 225, 226. In such a manner, with street lights brightening as a vehicle 102 approaches and dimming and eventually extinguishing after vehicle 102 passes, a moving “bubble” of illumination surrounds vehicle 102.


Additionally, in the case of a lighted intersection, additional lights on the cross-road may also be triggered to light up, providing vehicle 102 with a clear view of any possible cross-traffic, vehicle or otherwise. With appropriate central computer control and programming which will be readily understood and achieved by those skilled in the computer arts, the illumination of these neighboring lights can be increased, to provide sufficient illumination to ensure the safety of vehicle 102. Since different persons will have different desires regarding the extent of adjacent illumination, an embodiment of the present invention may incorporate custom programming of such features by individual vehicle 102, or within standard preset selections, such as “cautious” where a relatively large number of lights are illuminated adjacent to vehicle 102, or “carefree,” where only a minimum number of lights are illuminated. Again, the level of illumination may additionally vary with relation to the vehicle, the geometry of the road space, in accord with personal preferences, or for other reasons.


Illumination control in the preferred embodiment is the result of programming and data communication between LED illumination 130 from automobile 102 and street lights 120-128. However, in one embodiment street lights 120-128 may simply sense the presence of illumination 130, whether carrying embedded communications or not. In such case, street lights 120-128 would also illuminate for a person walking with a flashlight.


While the present invention may be used in combination with existing structures, FIGS. 4 and 5 illustrate two possible configurations of lights created optimally for optical communication. Both preferred embodiment lights 400, 500 are designed for LED lights that may be powered by or backed-up by solar energy panels 402, 502, respectively, though they may alternatively or additionally rely upon power conduits 405, 505. These lights may be designed to operate in an emergency communications mode using very short duty cycle pulses in the event of an emergency back-up or loss of power line power, or even continuously in the low power mode if there are not sufficient battery reserves available. An exemplary emergency power operation is illustrated and described in my co-pending applications incorporated herein above by reference. The light illustrated in FIG. 4 most preferably provides focused light as an output at transmitter 422, and a receiver 420. As a result, light 400 may serve as a relay. One or more focused outputs may be provided, and additional receivers may also be provided.


The light illustrated in FIG. 5 is preferably a street light or the like, and may include not only a broad illumination pattern from a Visible Light Embedded Communications (VLEC) source 510, but may further be provided with receivers and transmitters for focused beams, similar to 410, 420 of FIG. 4.


For LED lights as discussed herein to replace an existing bulb, regardless of type, and benefit from the many features enabled in the preferred embodiment, communications circuitry must also be provided. This communications circuitry is necessary to properly illuminate each of the red, green and blue LEDs to desired color and to transport data through optical communication channel 113.


Location based services within a VLEC infrastructure will additionally include improved and secure content. One example is a consumer shopping mall where general consumers can walk around and discover the exact location of the goods or services they need. This is accomplished by simply providing a portal for any business to place information about their goods and services. The information is then incorporated into the BPL infrastructure by means of application controlling devices which links to the overall office or place of business VLEC grid. Another is in a major office complex where security personnel can identify personnel in other offices as they patrol the grounds by simply having the information provided to them in real time. With all business personnel having an assigned badge with VLEC technology, the system can locate individuals in meetings and alert them if needed. Personal Navigation devices will have the added advantage of providing improved coordination and collaboration methods by providing an increase in friend to friend location services. A friend to friend location service is an optional service whereby a personal list of friends or family members equipped with VLEC technology GPSRS devices can be created in a data base and that data base is managed by the group participants. When needed they utilize a VLEC GPSRS client device that associates with a VLEC host and then with a connection of some form through a controller in the home that connects or interfaces over BPL to the Internet. The Information will then traverse the Internet and arrive at the predetermined location based on a designed collaboration (containing all Internet protocol addresses subnets and Ports designed for this purpose) by the Friends involved to create this network. The Controlling device will contain reference, relationship, awareness or look-up tables and establish in a fraction of a second, the location of the entity they are seeking. A separate database is compiled by businesses that opt into this service similar to today's location based services which can provide the user with a given experience sought after by the business: (sales of goods or services). This information is then embedded or encapsulated into the data stream and transceived throughout the Internet. Today's cumbersome RF calculations require algorithmic math computations that are constantly changing and therefore reduce the accuracy of locating the device in real-time. A reference back to the previous or last known location requires constant updates. Couple this with the inherent latencies of today's devices and effectiveness is reduced. Based on RF applications, an individual may measure the RSSI (radio signal strength indicator) and relate this information to another calculation table before the system can apply probable table coordinates in order to perform a triangulation calculation of the client device. The RF Location based services rely heavily on assisted GPS technology. This technology is very taxing and expensive on computers, and contributes to a poor economy of scale approach for businesses. GPSRS will embed location information.


A plurality of light supports or solitary light sources may be electrically coupled in either a parallel or series manner to a controller. The controller is also preferably in electrical communication with the power supply and the LEDs, to regulate or modulate the light intensity for the LED light sources. The individual LEDs and/or arrays of LEDs may be used for transmission of communication packets formed of light signals. The server optical XCVR and the client optical XCVR are substantially similar in at least one embodiment. An exemplary optical XCVR (or, simply, “XCVR”) circuit includes one or more LEDs for transmission of light and one or more photodetectors for receiving transmitted light.


The LEDs may be bi-directional. In at least one embodiment, the optical XCVR is comprised of bi-directional LEDs. In such an embodiment, the optical XCVR is constructed and arranged such that at least one of the bi-directional LEDs allows parallel transmitting and receiving of light signals.


The LED light sources described in relation to any embodiment herein may be electrically coupled to each other using parallel or series electrical connections for electrical communication to a centrally located controller and power source.


In some embodiments, the optical XCVR associated with the clock, for example, is constructed and arranged such that each photodiode acts as a separate receiver channel. In at least one embodiment, the optical XCVR associated with the clock, for example, is constructed and arranged such that each LED acts as a separate transmission channel.


It should be noted that in some embodiments, the LED can both emit and receive light. In such an embodiment, the LED can act both as a transmitter or receiver. More information on such bi-directional LEDs can be found in U.S. Pat. No. 7,072,587, the entire contents of which are expressly incorporated herein by reference.


In at least one embodiment, the name tag of FIG. 6 is embedded with a unique code, similar in principle to the MAC address of a computer, for example. Thus, every name tag has a unique identifier. The name tag broadcasts the unique code at regular intervals, or irregular intervals if desired. Optical XCVRs located within the user's building and near the user can then receive the unique code transmitted by the name tag. Badge 170 is illustrated in greater detail in FIG. 6, and may include features commonly found in standard security identification badges, including but not limited to such attributes as a photograph 1100 of the person assigned to the badge, and indicia such as employee identification or number 1200, name 1220, and business or entity logos 1240. Business or entity logos 1240, or other components may integrate anti-counterfeiting technology as may be available or known for such diverse applications as passports, driver's licenses, currency and other applications. Commonly used devices include holograms, watermarks, special materials or unique threads, and embedded non-alterable electronic, visible, sonic or other identification codes. An optical transmitter 1300 and receiver 1320 are most preferably provided and enable communication over optical communications channel 156. A microphone, loudspeaker, microphone and speaker combination, or dual-purpose device 1400 may be provided to integrate an auditory communication channel between communication badge 170 and nearby living beings or other animate or inanimate objects. A video camera 1420 may be incorporated to capture video or still pictures. A video display 1500 may additionally be incorporated into communication badge 170, permitting information 1520 to be displayed thereon, which could for exemplary purposes could comprise either text or graphics.


While the foregoing details what is felt to be the preferred embodiment of the invention, no material limitations to the scope of the claimed invention are intended. Further, features and design alternatives that would be obvious to one of ordinary skill in the art are considered to be incorporated herein. The scope of the invention is set forth and particularly described in the claims hereinbelow.

Claims
  • 1. An LED light and communication system comprising: at least one optical transceiver, the at least one optical transceiver comprising:at least one light emitting diode and at least one photodetector attached thereto, the at least one light emitting diode generating illumination, said illumination comprising a plurality of flashes of illumination, said flashes of illumination not being observable to the unaided eyes of an individual;a processor in communication with the at least one light emitting diode and the at least one photodetector, the processor being constructed and arranged to regulate said plurality of flashes of illumination into at least one communication signal; andsaid LED light and communication system further comprising a destination optical transceiver, said at least one communication signal comprising a destination optical transceiver location address, said destination optical transceiver location address comprising global positioning system location information.
  • 2. The system of claim 1, wherein the at least one optical transceiver is an origin optical transceiver, and wherein the at least one communication signal includes global positioning system (GPS) location information for said origin optical transceiver.
  • 3. The system of claim 2, the LED light and communication system further comprising a second optical transceiver, the second optical transceiver having a second optical transceiver location address, wherein the at least one communication signal includes global positioning system (GPS) location information for the second optical transceiver location address.
  • 4. The system of claim 3, the at least one communication signal comprising at least one data packet, said at least one data packet comprising global positioning system location information.
  • 5. The system of claim 4, wherein the second optical transceiver is located between said origin optical transceiver and said destination optical transceiver.
  • 6. The system of claim 5, the LED light and communication system further comprising a third optical transceiver, the third optical transceiver having a third optical transceiver location address, wherein the at least one communication signal includes global positioning system (GPS) location information for the third optical transceiver location address, said third optical transceiver being positioned between said second optical transceiver and said destination optical transceiver, wherein said third optical transceiver is constructed and arranged to modify said at least one data packet to identify said third optical transceiver location address as a preceding optical transceiver transmission address.
  • 7. The system of claim 4, the at least one data packet comprising global positioning system (GPS) routing information.
  • 8. The system of claim 4, said processor being constructed and arranged to read a transmitted data packet received by said at least one photodetector from another optical transceiver and to determine a direction for re-transmission of said transmitted data packet.
  • 9. In combination, the system of claim 1 and a broadband over power line communications system.
  • 10. The combination of claim 9, wherein the LED light and communication system is in communication with an operating system for a structure.
  • 11. The combination of claim 10, wherein the LED light and communication system is in communication with a security system for a structure.
  • 12. The combination of claim 11, wherein the LED light and communication system is in communication with a security system for a structure and an operating system for the structure.
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a Continuation application from U.S. patent application Ser. No. 14/050,765, filed Oct. 10, 2013, issued as U.S. Pat. No. 9,252,883, which is a Continuation application from U.S. patent application Ser. No. 13/479,705, issued as U.S. Pat. No. 8,593,299 on Nov. 26, 2013, which is a Continuation application from U.S. patent application Ser. No. 12/126,589 issued as U.S. Pat. No. 8,188,879 on May 29, 2012, the contents of which is hereby incorporated by reference. U.S. Pat. No. 8,188,879 also claims priority to U.S. provisional patent application Ser. No. 60/931,611 filed May 24, 2007, the disclosure of which is expressly incorporated herein by reference.

US Referenced Citations (423)
Number Name Date Kind
700678 Downie May 1902 A
2082279 Fore Jun 1937 A
3469686 Gutsche et al. Sep 1969 A
3696384 Lester Oct 1972 A
3701043 Zuleeg et al. Oct 1972 A
3705316 Burrous et al. Dec 1972 A
3863075 Ironmonger et al. Jan 1975 A
3867718 Moe Feb 1975 A
3889147 Groves Jun 1975 A
3911430 Jankowski et al. Oct 1975 A
4149111 Coates, Jr. Apr 1979 A
4243985 Quayle Jan 1981 A
4254453 Mouyard Mar 1981 A
4271408 Teshima Jun 1981 A
4298806 Herold Nov 1981 A
4301461 Asano Nov 1981 A
4319306 Stanuch Mar 1982 A
4336580 Mouyard Jun 1982 A
4342944 SpringThorpe Aug 1982 A
4368979 Ruell Jan 1983 A
4390931 Gorick Jun 1983 A
4434510 Lemelson Feb 1984 A
4445132 Ichikawa Apr 1984 A
4556862 Meinershagen Dec 1985 A
4595904 Gosswiller Jun 1986 A
4598198 Fayfield Jul 1986 A
4614866 Liss Sep 1986 A
4615131 Wakatake Oct 1986 A
4616225 Woudenberg Oct 1986 A
4630180 Muraki Dec 1986 A
4630183 Fujita Dec 1986 A
4633280 Takasu Dec 1986 A
4654629 Bezos Mar 1987 A
4703219 Mesquida Oct 1987 A
4710977 Lemelson Dec 1987 A
4716296 Bussiere Dec 1987 A
4720835 Akiba Jan 1988 A
4724312 Snaper Feb 1988 A
4742432 Thillays May 1988 A
4799135 Inukai Jan 1989 A
4821118 Lafreniere Apr 1989 A
4821338 Naruse Apr 1989 A
4868719 Kouchi Sep 1989 A
4900970 Ando Feb 1990 A
4918497 Edmond Apr 1990 A
4928084 Reiser May 1990 A
4929866 Murata May 1990 A
4935665 Murata Jun 1990 A
4949866 Sanders Aug 1990 A
4954822 Borenstein Sep 1990 A
4965644 Kawabata Oct 1990 A
4966862 Edmond Oct 1990 A
4975644 Fox Dec 1990 A
4975814 Schairer Dec 1990 A
4990970 Fuller Feb 1991 A
5000569 Nylund Mar 1991 A
5027168 Edmond Jun 1991 A
5035055 McCullough Jul 1991 A
5038406 Titterton Aug 1991 A
5041947 Yuen Aug 1991 A
5045767 Wakatake Sep 1991 A
5050055 Lindsay Sep 1991 A
5057828 Rousseau Oct 1991 A
5060303 Wilmoth Oct 1991 A
5062152 Faulkner Oct 1991 A
5067788 Jannson Nov 1991 A
5091828 Jincks Feb 1992 A
D324921 Stanuch Mar 1992 S
5093768 Ohe Mar 1992 A
5097397 Stanuch Mar 1992 A
5097612 Williams Mar 1992 A
5099346 Lee Mar 1992 A
5101326 Roney Mar 1992 A
5122943 Pugh Jun 1992 A
5136287 Borenstein Aug 1992 A
5159486 Webb Oct 1992 A
5164992 Turk Nov 1992 A
5172113 Hamer Dec 1992 A
5182647 Chang Jan 1993 A
5187547 Niina Feb 1993 A
5193201 Tymes Mar 1993 A
5198746 Gyugyi Mar 1993 A
5198756 Jenkins Mar 1993 A
5220235 Wakimizu Jun 1993 A
5224773 Arimura Jul 1993 A
5233204 Fletcher Aug 1993 A
5235498 VanDulmen Aug 1993 A
5247380 Lee Sep 1993 A
5283425 Imamura Feb 1994 A
5291196 Defour Mar 1994 A
5296840 Gieffers Mar 1994 A
5298738 Gebert Mar 1994 A
5302965 Belcher Apr 1994 A
5313187 Choi May 1994 A
5321593 Moates Jun 1994 A
5357123 Sugawara Oct 1994 A
5357409 Glatt Oct 1994 A
5359255 Kawai Oct 1994 A
5359669 Shanley Oct 1994 A
5361190 Roberts Nov 1994 A
5362971 McMahon Nov 1994 A
5381155 Gerber Jan 1995 A
5400140 Johnston Mar 1995 A
5401328 Schmitz Mar 1995 A
5403916 Watanabe Apr 1995 A
5406095 Koyama Apr 1995 A
5410328 Yoksza Apr 1995 A
5410453 Ruskouski Apr 1995 A
5416627 Wilmoth May 1995 A
5419065 Lin May 1995 A
5420444 Sawase May 1995 A
5422623 Bader Jun 1995 A
5426417 Stanuch Jun 1995 A
5434693 Tanaka Jul 1995 A
5436809 Brassier Jul 1995 A
5450301 Waltz Sep 1995 A
5453729 Chu Sep 1995 A
5465142 Krumes Nov 1995 A
5471371 Koppolu Nov 1995 A
5475241 Harrah Dec 1995 A
5482896 Tang Jan 1996 A
5490048 Brassier Feb 1996 A
5490049 Montalan Feb 1996 A
5491350 Unno Feb 1996 A
5498883 Lebby Mar 1996 A
5514627 Lowery May 1996 A
5516727 Broom May 1996 A
5519720 Hirano May 1996 A
5526237 Davenport Jun 1996 A
5528474 Roney Jun 1996 A
5532472 Furuta Jul 1996 A
5546219 Iida Aug 1996 A
5546496 Kimoto Aug 1996 A
5552780 Knockeart Sep 1996 A
5557257 Gieffers Sep 1996 A
5566022 Segev Oct 1996 A
5567036 Theobald Oct 1996 A
5568406 Gerber Oct 1996 A
5569939 Choi Oct 1996 A
5575459 Anderson Nov 1996 A
5580156 Suzuki Dec 1996 A
5585783 Hall Dec 1996 A
5593223 Koizumi Jan 1997 A
5593459 Gamblin Jan 1997 A
5594415 Ishikawa Jan 1997 A
5598290 Tanaka Jan 1997 A
5604480 Lamparter Feb 1997 A
5606444 Johnson Feb 1997 A
5607788 Tomazic Mar 1997 A
5612201 DePlaen Mar 1997 A
5612231 Holm Mar 1997 A
5625201 Holm Apr 1997 A
5627851 Takahashi May 1997 A
5631474 Saitoh May 1997 A
5632551 Roney May 1997 A
5633629 Hochstein May 1997 A
5634287 Lamparter Jun 1997 A
5634357 Nutter Jun 1997 A
5634711 Kennedy Jun 1997 A
5635902 Hochstein Jun 1997 A
5635981 Ribacoff Jun 1997 A
5636916 Sokolowski Jun 1997 A
5643357 Breton Jul 1997 A
5644291 Jozwik Jul 1997 A
5656829 Sakaguchi Aug 1997 A
5660461 Ignatius Aug 1997 A
5661645 Hochstein Aug 1997 A
5661742 Huang Aug 1997 A
5664448 Swan Sep 1997 A
5674000 Kalley Oct 1997 A
5694112 VannRox Dec 1997 A
5696500 Diem Dec 1997 A
5697175 Schwartz Dec 1997 A
5705047 Lee Jan 1998 A
5707891 Izumi Jan 1998 A
5708428 Phillips Jan 1998 A
5722760 Chien Mar 1998 A
5726535 Yan Mar 1998 A
5726786 Heflinger Mar 1998 A
5734337 Kupersmit Mar 1998 A
5734343 Urbish Mar 1998 A
5736925 Knauff Apr 1998 A
5739552 Kimura Apr 1998 A
5739592 Rigsby Apr 1998 A
5758947 Glatt Jun 1998 A
5760531 Pederson Jun 1998 A
5781105 Bitar Jul 1998 A
5783909 Hochstein Jul 1998 A
5785418 Hochstein Jul 1998 A
5786918 Suzuki Jul 1998 A
5789768 Lee Aug 1998 A
5793062 Kish, Jr. Aug 1998 A
5796376 Banks Aug 1998 A
5804822 Brass Sep 1998 A
5805081 Fikacek Sep 1998 A
5805209 Yuge Sep 1998 A
5806965 Deese Sep 1998 A
5808592 Mizutani Sep 1998 A
5809161 Auty Sep 1998 A
5809681 Miyamoto Sep 1998 A
5810833 Brady Sep 1998 A
5818421 Ogino Oct 1998 A
5826965 Lyons Oct 1998 A
5828055 Jebens Oct 1998 A
5831155 Hewitt Nov 1998 A
5838024 Masuda Nov 1998 A
5838116 Katyl Nov 1998 A
5838247 Bladowski Nov 1998 A
5838259 Tonkin Nov 1998 A
5848837 Gustafson Dec 1998 A
5860135 Sugita Jan 1999 A
5872646 Alderman Feb 1999 A
5875261 Fitzpatrick Feb 1999 A
5884997 Stanuch Mar 1999 A
5898381 Gartner Apr 1999 A
5900850 Bailey May 1999 A
5917637 Ishikawa Jun 1999 A
5929788 Vukosic Jul 1999 A
5931562 Arato Aug 1999 A
5931570 Yamuro Aug 1999 A
5932860 Plesko Aug 1999 A
5934694 Schugt Aug 1999 A
5936417 Nagata Aug 1999 A
5939996 Kniveton Aug 1999 A
5948038 Daly Sep 1999 A
5959752 Ota Sep 1999 A
5960135 Ozawa Sep 1999 A
5965879 Leviton Oct 1999 A
5966073 Walton Oct 1999 A
5975714 Vetorino Nov 1999 A
5990802 Maskeny Nov 1999 A
5991085 Rallison Nov 1999 A
6009650 Lamparter Jan 2000 A
6014237 Abeles Jan 2000 A
6018899 Hanitz Feb 2000 A
6028694 Schmidt Feb 2000 A
6035053 Yoshioka Mar 2000 A
6035055 Wang Mar 2000 A
6035074 Fujimoto Mar 2000 A
6067010 Wang May 2000 A
6067011 Leslie May 2000 A
6067018 Skelton May 2000 A
6072893 Luo Jun 2000 A
6081206 Kielland Jun 2000 A
6081304 Kuriyama Jun 2000 A
6086229 Pastrick Jul 2000 A
6091025 Cotter Jul 2000 A
6094148 Henry Jul 2000 A
6095661 Lebens Aug 2000 A
6095663 Pond Aug 2000 A
6102696 Osterwalder Aug 2000 A
6106137 Adams Aug 2000 A
6111671 Bahuguna Aug 2000 A
6118388 Morrison Sep 2000 A
6121898 Moetteli Sep 2000 A
6126087 Hedger Oct 2000 A
6159005 Herold Dec 2000 A
6166496 Lys Dec 2000 A
6177678 Brass Jan 2001 B1
6183100 Suckow Feb 2001 B1
6188738 Sakamoto Feb 2001 B1
6243492 Kamei Jun 2001 B1
6249340 Jung Jun 2001 B1
6268788 Gray Jul 2001 B1
6271814 Kaoh Aug 2001 B1
6271815 Yang Aug 2001 B1
6271913 Jung Aug 2001 B1
6292575 Bortolussi Sep 2001 B1
6293904 Blazey Sep 2001 B1
6318886 Stopa Nov 2001 B1
6352358 Lieberman Mar 2002 B1
6367949 Pederson Apr 2002 B1
6369849 Rzyski Apr 2002 B1
6377558 Dent Apr 2002 B1
6380865 Pederson Apr 2002 B1
6389115 Swistock May 2002 B1
6389155 Funayama May 2002 B2
6396954 Kondo May 2002 B1
6400828 Covell Jun 2002 B2
6411022 Machida Jun 2002 B1
6424269 Pederson Jul 2002 B1
6426599 Leeb Jul 2002 B1
6461008 Pederson Oct 2002 B1
6462669 Pederson Oct 2002 B1
6469631 Pederson Oct 2002 B1
6472996 Pederson Oct 2002 B1
6476726 Pederson Nov 2002 B1
6504487 Pederson Jan 2003 B1
6504646 Amoruso Jan 2003 B1
6532212 Soloway Mar 2003 B1
6547410 Pederson Apr 2003 B1
6548967 Dowling Apr 2003 B1
6590343 Pederson Jul 2003 B2
6590502 Pederson Jul 2003 B1
6600274 Hughes Jul 2003 B1
6600899 Radomsky Jul 2003 B1
6614359 Pederson Sep 2003 B2
6623151 Pederson Sep 2003 B2
6683590 Pang Jan 2004 B1
6690294 Zierden Feb 2004 B1
6693551 Pederson Feb 2004 B2
6705745 Pederson Mar 2004 B1
6707389 Pederson Mar 2004 B2
6788217 Pederson Sep 2004 B2
6814459 Pederson Nov 2004 B2
6819654 Soloway Nov 2004 B2
6819677 Nouzovsky Nov 2004 B1
6822578 Pederson Nov 2004 B2
6844824 Vukosic Jan 2005 B2
6879263 Pederson Apr 2005 B2
6892942 Widl May 2005 B1
7006768 Franklin Feb 2006 B1
7023469 Olson Apr 2006 B1
7046160 Pederson May 2006 B2
7102665 Chandler Sep 2006 B1
7103614 Kucik Sep 2006 B1
7183895 Bazakos Feb 2007 B2
7230884 Shemesh Jun 2007 B2
7289731 Thinguldstad Oct 2007 B2
7309965 Dowling Dec 2007 B2
7321757 Yamashita Jan 2008 B2
7323991 Eckert Jan 2008 B1
7324757 Wilson Jan 2008 B2
7333735 Goorjian Feb 2008 B1
7352972 Franklin Apr 2008 B2
7439847 Pederson Oct 2008 B2
7439874 Sotiriou Oct 2008 B2
7529488 Burdick May 2009 B2
7548698 Yamamoto Jun 2009 B2
7557521 Lys Jul 2009 B2
7583901 Nakagawa Sep 2009 B2
7689130 Ashdown Mar 2010 B2
7912377 Koga Mar 2011 B2
7940191 Hierzer May 2011 B2
8126554 Kane Feb 2012 B2
8175799 Woehler May 2012 B1
8188878 Pederson May 2012 B2
8188879 Pederson May 2012 B2
8207821 Roberge Jun 2012 B2
8421588 Ross Apr 2013 B1
8538692 Wurman Sep 2013 B2
8571411 Pederson Oct 2013 B2
8593299 Pederson Nov 2013 B2
8687965 Pederson Apr 2014 B2
8729833 Chemel May 2014 B2
8744267 Pederson Jun 2014 B2
8886045 Pederson Nov 2014 B2
8890773 Pederson Nov 2014 B1
8891962 Du Nov 2014 B2
8902076 Pederson Dec 2014 B2
9252883 Pederson Feb 2016 B2
9413457 Pederson Aug 2016 B2
20020109892 Seto Aug 2002 A1
20020168958 Ford Nov 2002 A1
20020181044 Kuykendall, Jr. Dec 2002 A1
20030025608 Pederson Feb 2003 A1
20030118216 Goldberg Jun 2003 A1
20030156037 Pederson Aug 2003 A1
20030169164 Lau Sep 2003 A1
20030185340 Frantz Oct 2003 A1
20030212996 Wolzien Nov 2003 A1
20030222587 Dowling Dec 2003 A1
20040028349 Nagasaka Feb 2004 A1
20040044709 Cabrera Mar 2004 A1
20040101312 Cabrera May 2004 A1
20040151344 Farmer Aug 2004 A1
20040153229 Gokturk Aug 2004 A1
20040208599 Swartz Oct 2004 A1
20050002673 Okano Jan 2005 A1
20050005794 Inukai Jan 2005 A1
20050057941 Pederson Mar 2005 A1
20050111533 Berkman May 2005 A1
20050111700 O'Boyle May 2005 A1
20050169643 Franklin Aug 2005 A1
20050231128 Franklin Oct 2005 A1
20060039698 Pautler Feb 2006 A1
20060056855 Nakagawa Mar 2006 A1
20060132382 Jannard Jun 2006 A1
20060149813 Janik Jul 2006 A1
20060192672 Gidge Aug 2006 A1
20060193634 Wang Aug 2006 A1
20060213731 Lesesky Sep 2006 A1
20060238368 Pederson Oct 2006 A1
20060253598 Nakamura Nov 2006 A1
20060262545 Piepgras et al. Nov 2006 A1
20060275040 Franklin Dec 2006 A1
20070041732 Oki Feb 2007 A1
20070104239 Koga May 2007 A1
20070110446 Hong May 2007 A1
20070145915 Roberge Jun 2007 A1
20070147843 Fujiwara Jun 2007 A1
20070160373 Biegelsen Jul 2007 A1
20070165244 Yukhin Jul 2007 A1
20070195263 Shimizu Aug 2007 A1
20070269219 Teller Nov 2007 A1
20070285026 Johler Dec 2007 A1
20070294029 DAndrea Dec 2007 A1
20080044188 Kagawa Feb 2008 A1
20080063404 Broyde Mar 2008 A1
20080138077 Stretton Jun 2008 A1
20080154101 Jain Jun 2008 A1
20080170536 Marshack Jul 2008 A1
20080227463 Hizume Sep 2008 A1
20080292320 Pederson Nov 2008 A1
20090002265 Kitaoka Jan 2009 A1
20090102396 Petrucci Apr 2009 A1
20090129782 Pederson May 2009 A1
20090157545 Mobley Jun 2009 A1
20090262760 Krupkin Oct 2009 A1
20090315481 Zhao Dec 2009 A1
20090315485 Verfuerth Dec 2009 A1
20100060194 Furry Mar 2010 A1
20100111538 Arita May 2010 A1
20100209105 Shin Aug 2010 A1
20110006898 Kruest Jan 2011 A1
20110128384 Tiscareno et al. Jun 2011 A1
20110140612 Mohan et al. Jun 2011 A1
20110305460 Snyder Dec 2011 A1
20120202520 George Aug 2012 A1
20120230696 Pederson Sep 2012 A1
20130221848 Miesak Aug 2013 A1
20140153923 Casaccia Jun 2014 A1
20140247907 McCune, Jr. Sep 2014 A1
Foreign Referenced Citations (61)
Number Date Country
2006201345 Oct 2007 AU
2007202909 Feb 2008 AU
2164920 Jun 1996 CA
4304216 Aug 1994 DE
19502735 Aug 1996 DE
19548639 Jun 1997 DE
19721673 Nov 1997 DE
29712281 Jan 1998 DE
0326668 Aug 1989 EP
0468822 Jan 1992 EP
0531184 Mar 1993 EP
0531185 Mar 1993 EP
0596782 May 1994 EP
0633163 Jan 1995 EP
0688696 Dec 1995 EP
0709818 May 1996 EP
0793403 Sep 1997 EP
0887783 Dec 1998 EP
0890894 Jan 1999 EP
0896898 Feb 1999 EP
0967590 Dec 1999 EP
1043189 Oct 2000 EP
1205763 May 2002 EP
1564914 Aug 2005 EP
2658024 Aug 1991 FR
2680861 Mar 1993 FR
2707222 Jan 1995 FR
2800500 May 2001 FR
1241369 Aug 1971 GB
2069257 Aug 1981 GB
2139340 Nov 1984 GB
2175428 Nov 1986 GB
2240650 Feb 1990 GB
2111270 Jun 1993 GB
2272791 May 1994 GB
2292450 Feb 1996 GB
2311401 Sep 1997 GB
2323618 Sep 1998 GB
2330679 Apr 1999 GB
2359179 Aug 2001 GB
2359180 Aug 2001 GB
60143150 Jul 1985 JP
S63153166 Jun 1988 JP
06333403 Dec 1994 JP
6333403 Dec 1994 JP
08002341 Jan 1996 JP
8002341 Jan 1996 JP
10098778 Apr 1998 JP
9750070 Dec 1997 WO
9935634 Jul 1999 WO
9942985 Aug 1999 WO
9949435 Sep 1999 WO
9949446 Sep 1999 WO
0074975 Dec 2000 WO
0101675 Jan 2001 WO
0110674 Feb 2001 WO
0110675 Feb 2001 WO
0110676 Feb 2001 WO
0225842 Mar 2002 WO
02073836 Sep 2002 WO
2007003037 Nov 2007 WO
Non-Patent Literature Citations (9)
Entry
Akhavan et al., “High-Speed Power-Efficient Indoor Wireless Infrared Communication Using Code Combining—Part I,” IEEE Trnsactions on Communications, vol. 50, No. 7, Jul. 2002, pp. 1098-1109.
Djahani et al., “Analysis of Infrared Wireless Links Employing Multibeam Transmitters and Imaging Diversity Receivers,” IEEE Transactions on Communications, vol. 48, No. 12, Dec. 2000, pp. 2077-2088.
Hawaiian Electric Company, Inc.: Powerlines—Energy Efficiency Takes-off at Honolulu International Airport, Spring 2008, pp. 1-13.
Jeffrey B. Carruthers, “Wireless Infrared Communications,” Wiley Encyclopedia of Telecommunications, 2002.
Kahn et al., “Wireless Infrared Communications,” Proceedings of the IEEE, vol. 85, No. 2, Feb. 1997, pp. 265-298.
Komine T. et al., “Integrated System of White LED Visible-Light Communicaiton and Power-Line Communication,” Sep. 15, 2002; Sep. 15, 2002-Sep. 18, 2002, vol. 4, Sep. 15, 2002, pp. 1762-1766.
Pacific Northwest National Laboratory: Demonstration Assement of Light-Emitting Diode (LED) Parking Lot Lighting, Phase 1, Jun. 2010, pp. 1-37.
T. Komine and M. Nakagawa, Integrated System of White LED Visible-Light Communication and Power-Line Communication Integrated System of White LED Visible-Light Communication and Power-Line Communication, Toshihiko Komine, Student Member, IEEE and Masao Nakagawa, Member, IEEE Date 1, Feb. 2003 pp. 71-79.
Van Wicklen, Garrett L.: Using LED Lights Can Reduce Your Electricity Costs, Dec. 2005, Cooperative Extension Service, Applied Poultry Engineering News, vol. 3, No. 1, pp. 1-4.
Related Publications (1)
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20160164607 A1 Jun 2016 US
Provisional Applications (1)
Number Date Country
60931611 May 2007 US
Continuations (3)
Number Date Country
Parent 14050765 Oct 2013 US
Child 15013131 US
Parent 13479705 May 2012 US
Child 14050765 US
Parent 12126589 May 2008 US
Child 13479705 US