Patent Application
20100198376
Embodiments of the present invention are generally related to communication devices and systems such as remote control devices, e.g., for remote control of electronic devices.
As technology advances, home entertainment systems and display devices such as televisions have become increasingly widespread. Unfortunately, those enjoying content may disturb others in the area. For example, those hard of hearing may need to have the volume louder to compensate, while others may be easily disturbed while sleeping. The sound of content may also flow through walls and floors disturbing those in other rooms.
One attempt to solve these problems is to have the user purchase a mechanical transducer and wire it to the subwoofer output of an audio/video (AV) amplifier. This requires the user to figure out to setup the transducer and connect the transducer correctly. Further, if the transducer is located on a wall or on the floor, the advantage over an acoustical subwoofer is eliminated as others may be disturbed.
Thus, a need exists for a device that can provide localized audio output with minimal disruption of those around the user. Embodiments of the present invention include remote control devices and other devices with audio components (e.g., speaker, transducer, etc.) for outputting audio in close proximity to the user. Embodiments further conserve power by selectively turning off audio components when not in use (e.g., no audio signals, mute, etc.).
In one embodiment, the present invention is implemented as a system for use as a personal audio device (e.g., remote control device, etc). The system includes a power module for powering the personal audio device and a control command transmission module operable to receive input commands and issue the commands to a device to be controlled (e.g., display device, audio system, etc.). The system further includes a receiver (e.g., RF receiver) operable to wirelessly receive audio signals and an audio component including a transducer operable to be used for outputting an audio channel of the audio signal (e.g., a bass audio channel).
In another embodiment, the present invention is implemented as a system for performing remote control and having an audio output capability. The system includes an input module for receiving commands to be communicated and a transmission module for transmitting the commands. The system further includes a receiver for receiving audio signals and an audio component for outputting the audio signal. The audio component may include a speaker. The speaker may be designed for use in a remote control device and for providing audio in close proximity to a user.
In this fashion, embodiments of the present invention implement a system for providing localized audio content. More specifically, embodiments of the present invention utilize the proximity of a remote control device to provide audio content without disturbing others. In one embodiment, the complexity of normal subwoofer setup is eliminated as subwoofer audio channels are wirelessly delivered to the remote control device. Embodiments further include the necessary signal processing circuitry to generate audio channels and send the signal wireless for playback in proximity to user.
In another embodiment, the present invention is implemented as a remote control device. The remote control device includes an input module for receiving a command to be transmitted and a transmitter for transmitting the command received by the input module. The remote control device further includes a radio frequency receiver for receiving an audio signal and an audio component for facilitating output of the audio signal. The audio component is further operable to be coupled to an audio output device (e.g., headphones, external speakers, etc.).
The present invention is illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements.
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of embodiments of the present invention, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be recognized by one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the embodiments of the present invention.
Some portions of the detailed descriptions, which follow, are presented in terms of procedures, steps, logic blocks, processing, and other symbolic representations of operations on data bits within a computer memory. These descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art. A procedure, computer executed step, logic block, process, etc., is here, and generally, conceived to be a self-consistent sequence of steps or instructions leading to a desired result. The steps are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated in a computer system. It has proven convenient at times, principally for reasons of common usage, to refer to these signals as bits, values, elements, symbols, characters, terms, numbers, or the like.
It should be borne in mind, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities. Unless specifically stated otherwise as apparent from the following discussions, it is appreciated that throughout the present invention, discussions utilizing terms such as “processing” or “accessing” or “executing” or “storing” or “rendering” or the like, refer to the action and processes of a computer system (e.g., system 100 of
Input module 214 allows entry of commands into system 200 which may then be used to control a device (e.g., system 300). Input module 214 may include, but is not limited to, navigations pads, keyboards (e.g., QWERTY), up/down button, touch screen control (e.g., via display 210) and the like.
Communication module 202 is operable to communicate control signals to a device (e.g., system 200). In one embodiment, command communication module 202 includes infrared (IR) transmitter 204 and radio frequency (RF) module 206. RF module 206 includes transmitter 206a and receiver 206b. IR transmitter 204 and transmitter 206a are operable to transmit commands received via input module 214 to a device to be controlled (e.g., system 300). Communication module 202 may further receive signals (e.g., via receiver 206b) from a device to be controlled (e.g., system 200).
It is appreciated that communication module 202 may include a radio frequency transceiver. It is further appreciated that embodiments of the present invention may use a variety of wireless communication formats or protocols including, but not limited to, Industrial, Scientific, and Medical radio band (ISM) (e.g., 900 Mhz, 2.4 GHz, etc.), 802.11a/b/g/n, Bluetooth, Z wave, or other wireless standards or protocols. It is also appreciated that modulation can be analog or digital in nature.
Receiver 206b may receive audio signals including, but not limited to, monaural, stereo, or bass (e.g., low frequency) audio channels. Receiver 206b may further receive commands from the audio source (e.g., television or other A/V equipment) for adjusting output of audio component 212. The commands received by receiver 206b can be used to turn on and off receiver 206b. For example, if the user invokes a mute function, receiver 206b may receive a command to deactivate speaker 212a and/or transducer 212b to conserve power. As another example, where audio component 212 includes a transducer 212b, if the user turns off bass (e.g., low frequency) audio channels, receiver 206b may receive a command to deactivate transducer 212b until bass audio channels are turned back on. It is appreciated that commands and audio signals may also be received via an IR receiver (not shown).
Control module 208 may handle signals received by communication module 202. Control module 208 includes microprocessor 220 and power management module 224. Microprocessor 220 is used to process audio signals received via communication module 202 and further to perform any commands received via communication module 202 (e.g., commands from system 200, display device, audio system, etc.). Audio signals received via communication module 202 are sent to audio component 212 for output. It is appreciated that microprocessor 220 may send processed or unprocessed audio signals to audio component 212.
Power management component 224 is operable to control, among other things, receiver 206b and audio component 212. In one embodiment, when no audio signal being transmitted from the audio source (e.g., television, etc.), power management component 224 can direct receiver 206b can enter a sleep or low power mode where receiver 206b periodically wakes or activates to check for transmission of audio signals. If audio signals are detected, receiver 206b wakes up and transmits the audio signals to audio component 212 for output.
Power management module 224 (and/or microprocessor 220) may alter the operation of audio component 212. For example, the volume level of the output (e.g., of speaker 212a) may be reduced to save power. Similarly, the output of transducer 212b may be reduced to conserve power. In one exemplary embodiment, the modification of the operation of audio component 212 may be based on a length (e.g., 3 hours) or type of content (e.g., action film) received from a content source device (e.g., system 300). In another exemplary embodiment, power management module 224 may modify the operation of audio component 212 based on the amount of power remaining on power source 216. For example, as the battery gets low the operation of audio component 212 may be modified to conserve the remaining power.
It is appreciated that microprocessor 220 or power management module 224 may monitor input command received from input module 214 and power down receiver 206b and/or audio component 212. For example, if the user presses the mute button receiver 206b and/or audio component 212b can be deactivated until the user changes the volume or turns off mute.
In one exemplary embodiment, circuitry of speaker 212a and transducer 212b includes an automatic power down mode to power down in the event that there is no RF signal or if there were no significant amount of audio signal. It is appreciated that the low frequency sound frequently is not continuous in a program (e.g., corresponding to special effects and action sequences) thereby allowing portions of audio component 212 to be turned off frequently during a program.
Audio component 212 outputs sound from system 200. In one embodiment, audio component 212 includes speaker 212a. Speaker 212a may be a small speaker designed for system 200 to provide audio output within close proximity or the personal space of a user. In another embodiment, audio component is further operable to be coupled to an audio output device (e.g., headphones).
In another embodiment, audio component 212 includes transducer 212b. Transducer 212b may be a mechanical transducer operable to output low frequency or bass audio channel signals. The transducer 212b can be customized to fit into a remote control unit and act as a subwoofer. The close proximity (e.g., in bed, chair, couch, etc.) allows a user to use transducer 212b in place of an acoustical subwoofer and/or a larger external mechanical transducer. It is appreciated that while placing a transducer in a remote limits the power available, both the proximity and corresponding size provide sufficient tactile response to allow the user to feel the bass while the remote control device is near the user (e.g., at the user's side in the bed or even a chair).
The close proximity of transducer 212b allows a user to receive audio content without distributing others (e.g. the remote control device could be under pillow or beside the user's head). For example, when the user is in bed with a sleeping person near, the small vibrations of the transducer allow the user to have a full media content experience with little to no disruption of the sleeping person. Transducer 212b allows vibrating a pillow, hand, edge of derriere, without disturbing others. Transducer 212b thus emulates a subwoofer inside system 200 thereby allowing the user to experience low frequency audio within the user's personal space.
Power source 216 provides power for system 200. Power source 216 may be portable power source including, but not limited to, disposable batteries (e.g., alkaline), rechargeable batteries (e.g., lithium ion, nickel metal hydride, nickel-cadmium, etc.). Power source 216 may facilitate system 200 to be placed on a charger when not in use (e.g., electrically or magnetically coupled) or plugged in. In one embodiment, system 200 may have space for both rechargeable and disposable batteries.
In this fashion, embodiments of the present invention implement a system for providing localized audio content. More specifically, embodiments of the present invention utilize the proximity of a remote control device to provide audio content without disturbing others. In one embodiment, the complexity of normal subwoofer setup is eliminated as subwoofer audio channels are wirelessly delivered to the remote control device. Embodiments further include the necessary signal processing circuitry to generate audio channels and send the signal wireless for playback in proximity to user.
Content receiver 302 receives content for system 300. Receiver 302 may receive signals including content from a variety of sources including, but not limited to, computers, computer networks, portable devices, set top boxes, over the air broadcasts, cable broadcasts, satellite broadcasts, Digital versatile Discs (DVDs), Blu-ray discs, Digital Video Broadcasting-Handheld (DVB-H), Digital Multimedia Broadcasting (DMB), Digital Video Broadcasting Satellite services to Handhelds (DVB-SH), Digital Audio Broadcasting (DAB), Digital Video Broadcasting IP Datacasting (DVB-IPDC), Internet Protocol Television (IPTV), audio devices, etc. Content receiver 302 may receive content (e.g., electronic programming guide information and other content) via cable or satellite connection 322, internet connection 324, and wireless antenna 326 (e.g., via 802.11a/b/g/n, Bluetooth, Z wave, Digital Broadcast, etc.).
Display controller 304 controls display screen 306 of system 300. Display controller 304 may control a variety of display screens associated with system 300, including but not limited to, CRTs, LCDs, plasma displays, projection based, and Digital Light Processing (DLP) displays.
Command receiver 308 receives commands. Command receiver 308 may receive commands via a variety of receivers including, but not limited to, infrared receiver and radio frequency receivers. The commands may have been issued via a remote control (e.g., system 300 of
Command processor 314 processes commands received by system 300 via command receiver 308. The commands received are processed and executed by system 300. For example, control codes (e.g., increase volume, change channel, launch an application, launch web browser, etc.) may be received by via an infrared receiver 310 or radio frequency receiver 312, decoded, and sent to the command processor 314.
Audio controller 316 controls audio output for system 300 including a variety of outputs including, but not limited to, 2, 2.1, 3.1, 5.1, 6.1, 7.1, and 8.1 channel audio. The audio content may be received via content receiver 302. It is appreciated that audio controller 316 may output to audio equipment integrated within system 300.
Transmitter 318 may send signals to a control device (e.g., remote control). The signals transmitted may be full or partial audio signals. The signals may include, but are not limited to, commands (e.g., indicating mute, volume to zero, bass output deactivation, etc.), and audio signals (e.g., monaural, stereo, bass or low frequencies audio channels, etc.).
Receiver 606 receives audio signals (e.g., bass or low frequency audio channel signals) from an audio device (e.g., system 300, etc.) and provides the signals to transducer 602 via amplifier 604. In one embodiment, amplifier 604 may be a high efficiency Class B or Class D amplifier. It is appreciated that receiver 606 may receive and process commands for conserving power as described herein. It is further appreciated that receiver 606 may perform power saving functions substantially similar to power management module 224.
Transducer 602 is coupled to support 610 for holding the relative position of transducer 602 in cushion 601 and for facilitating transducer 602 in providing vibrational output. Transducer 602 may output bass or low frequency audio channel signals. A user may thus merely turn system 600 on, and adjust the level of the subwoofer to their preferences via a display device (e.g., graphical user interface (GUI)) or A/V system. The transducer 602 may be designed such that it could easily be concealed in a typical cushion or a piece of furniture.
Power source 608 provides power for system 600. Power source 608 may be portable power source including, but not limited to, disposable batteries (e.g., alkaline), rechargeable batteries (e.g., lithium ion, nickel metal hydride, nickel-cadmium, etc.). Power source 608 may also facilitate coupling system 600 to a wall socket or other external electrical source.
The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.
