Patent Application
20050146753
The present invention is broadly related to multi-function printers, and more specifically to systems and methods for automatically detecting incoming voice or fax transmissions by a fax capable multi-function printer device to route calls accordingly.
Initially, facsimile, or fax, technology was primarily developed for commercial use as a means of transmitting copies of documents without employing conventional mail or courier services. The standard fax machine can be connected to a dedicated telephone line that is not shared by any other device, such as an answering machine in a consumer setting, or even a credit card reader in a commercial setting. For some businesses it is typically not a great burden to pay a few extra dollars per month for a separate line for a critical device such as a fax machine.
However, it is becoming more common and more useful for consumers and small businesses to have fax capability. Yet, consumers and small businesses that cannot dedicate a line to a fax machine are may have additional burdens. For example, conflicts can arise between an answering machine and a traditional fax machine in that most fax machines will answer after a certain number of rings, in a fashion similar to a typical answering machine. Thus, in unattended situations, one device will pick-up, preempting operation of the other device. In some instances, consumers and small businesses that cannot dedicate a line to a fax machine may either receive voice messages or unattended faxes, but not both.
Modern multi-function printers, also known as all-in-one devices, may include fax, as well as copy, scan and print capability. A user wanting to use the fax functionality of a multi-function printer device would typically either turn off their answering machine when they expect a fax, or conversely turn off the fax when they expect a voice message, unless they subscribe to separate phone lines for each device.
An embodiment of a method for receiving facsimiles in a multi-function printer device comprises detecting, by the multi-function printer device, an incoming phone call, monitoring, by the multi-function printer device, the incoming phone call for a facsimile tone while the incoming call is answered, continuing to monitor, by the multi-function printer device, the incoming phone call for a facsimile tone after the incoming call is answered, allowing, by the multi-function printer device, the incoming call to proceed when no facsimile tone is detected, and initializing the multi-function printer device to receive an incoming facsimile transmission in response to the facsimile tone being detected.
An embodiment of a multi-function printer device comprises means for printing media, means for optically scanning media, means for sending and receiving facsimiles, means for monitoring an incoming phone call for a facsimile tone from the incoming call being answered during the incoming call, and means for initializing the facsimile means to receive an incoming facsimile transmission in response to the monitoring means detecting a facsimile tone.
An embodiment of a system for automatically detecting incoming fax transmissions by a fax-capable multi-function printer device and routing a call according to a type of the call comprises a multi-function printer device comprising a printer, an optical scanner, a call monitor and a facsimile functionality, wherein the multi-function printer device monitors answered incoming phone calls to internally intercept incoming facsimile transmissions and initialize the facsimile functionality to receive the incoming facsimile transmissions, and the system comprises a general purpose processor-based device selectively interfaced with the multi-function printer device and selectively powered.
The present invention does not require answering machine capability be built into a multi-function printer device. The present systems and methods provide a multi-function printer device, such as an all-in-one device, with a capability to switch and/or monitor incoming calls intelligently to determine whether the incoming call is a fax transmission or a voice transmission and process the call appropriately. In various embodiments the present systems and methods such processing of calls appropriately is provided by a fax-capable multi-function printer device that automatically detects incoming facsimile transmissions and internally routes these fax calls to an internal fax functionality of the multi-function printer device. Various embodiments of the present systems and methods allow non-fax calls to continue without interruption. The present invention monitors incoming calls answered by an answering machine or an individual. In at least one alternative embodiment the answering machine or phone need not necessarily be connected to the multi-function printer device. However, a telephone or answering machine connected to the multi-function printer device of the present invention may be connected directly to the device or indirectly connected to the device, such as a phone connected to an answering machine that is directly connected to the device. When a person or an answering machine answers a call, the multi-function printer device silently monitors for a fax tone while the answering machine is playing its outgoing message or while an answering person is listening or talking such as while speaking a greeting. If the device recognizes a fax tone, the device disconnects the line-out port that may be connected to the phone or the answering machine, and starts synchronizing and connecting to receive the fax transmission. If the device does not detect a fax tone, the device may allow the call to proceed as a voice call, without interruption or interception.
Alternative embodiments of the present invention may not only monitor for a fax tone, but may also monitor for incoming sound, such as a voice. If no incoming sound is detected, the present systems and methods may initiate a fax receive process lest a sending fax machine is not employing an initiating fax tone.
Fax functionality 104 may use printing functionality 101 for printing received faxes and fax functionality 104 may receive scanned images from scanning functionality 102 to be used as outgoing faxes. Multi-function printer device 100 preferably has interface 105 for optionally interfacing with general purpose processor based device 106. Interface 105 may take the form of a parallel port, Universal Serial Bus (USB) port, FireWire (IEEE 1394) port, or the like. However, multi-function printer device 100 may operate as a stand-alone device, at least as an integrated stand-alone copier and/or fax device, without the need to be connected to general purpose processor based device 106, or without any need for general purpose processor based device to be in a powered-on status, if connected. Phone line-in 115 is preferably connected to a wall phone jack 116 or the like and phone line-out 117 may optionally be connected to at least one communication device such as telephone 118, answering machine 119, or the like. Phone line-in 115 and phone line-out 117 may be decoupled in present multi-function printer device 100, wherein the line-in and line-out ports of the present multi-function printer device may be independently addressed, and a signal sent to one port may not be provided at the other port.
Multi-function printer device 100 also preferably includes call monitoring functionality 109 that monitors for a fax tone after a call is answered. During an incoming call, at least initially, while connected answering machine 119 plays a greeting or when a person initially answers connected phone 118, multi-function printer device monitoring functionality 109 monitors the line for a fax tone coming from the caller. In most cases, if the call is from a fax machine the multi-function printer device will detect a standard tone sent by fax machines upon transmission. If this tone is detected the multi-function printer device will preferably connect to the call in a fax-reception mode by disconnecting telephone 118 or answering machine 119. However, if the call is from a person then no tone will be present, in which case the multi-function printer device 100 allows the call to proceed and may cease monitoring the line. Alternatively, monitor 109 may continue to monitor for a fax tone. Additionally, multi-function printer device 100 may also monitor for incoming sound such as a voice. If after some delay, such as may be pre-set or user settable, no incoming sound is detected during a call the present systems and methods may connect to the call in a fax-reception mode, in the event a sending fax machine is not employing an initiating fax tone.
Memory 108 resident in multi-function printer device 100 may be used to store received faxes. Memory 108 may take the form of volatile memory such as Random Access Memory (RAM), nonvolatile memory such as Read Only Memory (ROM) and/or Erasable Programmable read only Memory (EPROM) or a combination of volatile and nonvolatile memory. A combination of volatile and nonvolatile memory may, for example, use volatile memory to store transient data such as incoming faxes while nonvolatile memory may be used to store more permanent data such as default and/or user selected device settings. Memory 108 may be in addition to typical RAM or other memory associated with printer, scanner and/or copier functionality 101, 102 and /or 103. Memory 108 may be internal to multi-function printer device 100. However, RAM or other memory associated with general purpose processor-based device 106 may also or alternatively be employed to store incoming faxes or the like and/or device settings. Multi-function printer device 100 may additionally, or alternatively, include one or more slots to receive memory devices such as smart media, compact flash, IC media, or other forms of removable media, for storing faxes in addition to more conventional uses such as providing pictures directly to printer functionality 101. Alternatively, if multi-function printer device 100 is connected to general purpose processor-based device 106 and general purpose processor-based device 106 is powered on, general purpose processor-based device 106's hard drive or other storage media may be used to store faxes. Thereby, general purpose processor-based device 106 may be used to display the faxes, such as at a later time.
As noted above, embodiments of multi-function printer device 100 may be used as a stand-alone device. User interface (UI) 130 may facilitate such stand-alone operation, and preferably may also be employed when the present multi-function printer device is employed in conjunction with general purpose processor-based device 106. Interface 130 may, among other functions, facilitate sending of faxes and manual receiving of faxes, as well as providing an interface for user selection of device settings, downloading of faxes to memory devices, and/or other operations related to multi-function printer device 100. Alternatively or additionally, a user interface may be provided on general-purpose processor-based device 106. Preferably, once set-up using such a computer-provided UI, multi-function printer device 100 is enabled to function as a stand-alone device without the computer turned on and/or connected, only using the computer UI for configuration changes. Also, as a default, multi-function printer device 100 is preferably enabled to function as a fax device without any configuration set-up using UI 130 or a computer provided UI, through the use of default settings. Indicator 132, that may be a part of UI 130, may provide a visual and/or audio indication of one or more stored faxes.
Network interface 120, such as an Ethernet port, may also be provided by multi-function printer device 100 to provide interconnectivity to network 125, such as a wired local area network, a wide area network, the Internet, a public telephone network, and/or the like. Multi-function printer device 100 may also, or alternatively, employ one or more wireless technologies such as IEEE 802.11 wireless networking, BULETOOTH™, infrared (IR), or the like, to provide connectivity with general purpose processor-based device 106, network 125 and/or other devices or services such as a Personal Digital Assistant (PDA), a wireless local area network, and/or the like.
Alternatively, the multi-function printer device may both print (207) and store (208) the received fax. The multi-function printer device may store the received fax at 208 concurrently with receipt of the received fax at 206, prior to disconnecting, concurrently with disconnecting or following disconnecting. Preferably, if a received fax is stored at 208 an audio and/or visual indicator is set at 209. As a further alternative, if the all-in-one multi-function printer device is out of paper or otherwise incapable of printing at the time a fax is received, the multi-function printer device may store an incoming fax in memory and set an indicator. As yet another alternative, an option to save, print, or both print and save a received fax to memory, may be a user settable or selectable feature. As noted above, the memory used to store a received fax may be resident in the multi-function printer device, or memory/storage associated with a connected general-purpose processor-based device, such as a PC. Resident memory may be shared by various functionalities of the present multi-function printer device. The multi-function printer device may also provide forwarding functions for received faxes. Additionally or alternatively, the present multi-function printer device may afford an ability to download faxes to a connected PC, facilitating conversion and or forwarding of received faxes or messages via email or the like.
Additionally, if the call is not answered at 202, such as after a preset number of rings, fax functionality of the present device may answer the call at 210 and initiate a fax receive at 206. Preferably, the number of rings may either be set by the user, such as through one of the aforementioned UIs, or preset in the multi-function printer device as a default.
As noted above, embodiments of the present invention may monitor the line at 220 for incoming sound, such as a voice. If no sound is detected at 220 the present systems and methods may initiate a fax receive at 206 in an attempt to synchronize such as with a sending fax machine that is not employing an initiating fax tone.
This application is related to commonly assigned and concurrently filed U.S. patent application Nos. [Attorney Docket No. 200205924-1] entitled “MULTI-FUNCTIONAL PRINTER DEVICE”, and [Attorney Docket No. 200205923-1] entitled “MULTI-FUNCTIONAL PRINTER DEVICE”, the disclosures of which are incorporated herein by reference.
