Abstract: Power management techniques in distributed communication systems are disclosed herein. Related components, systems, and methods are also disclosed. In embodiments disclosed herein, services within a remote unit of the distributed communication system are selectively activated and power consumption is measured. From at least two measurements, a maximum power available may be calculated and compared to power requirements of the remote unit.

Abstract: Spectral analysis system for capturing a spectrum with an optic that forms an optical path. The spectral analysis system is configured to apply a correction function to a captured spectrum so as to obtain a modified spectrum.

Abstract: According to one embodiment, an optical coupling device includes a light emitting element configured to convert an electric signal into an optical signal, a photo transistor circuit configured to convert the optical signal into a current, the photo transistor circuit including a first transistor having a collector connected to a power source and an emitter through which the current is output, and a current mirror circuit including a second transistor having a collector connected to the emitter of the first transistor, a base connected to the emitter of the first transistor, and an emitter connected to a ground, and a third transistor having a collector connected to an output terminal, a base connected to the base of the second transistor, and a emitter connected to the ground.

Abstract: The application relates to a modem for use at a terminal. In one embodiment, the modem includes: (1) a first interface arranged for connection to a network; (2) a second interface arranged for connection to a host processor on the terminal; and (3) a processing unit arranged to, on receipt of a message from the network addressed to the host processor: determine whether or not the host processor is in a power saving mode; and if it is determined that the host processor is in a power saving mode, cause the first interface to transmit an acknowledgement to the message to the network regardless of whether a communication from the host processor is received via the second interface.

Abstract: An information communication apparatus includes a transmission apparatus transmitting audible sound signals and information signals, and a receiving apparatus. The transmission apparatus has multiple channels through which the audible sound signals are transmitted, one or more signal synthesizing units which electrically synthesize audible sound signals corresponding to each of the channels and machine operation control signals for controlling a machine and which generate synthesized electric signals with regard to each of the channels, and a transmission unit that transmits the synthesized electric signals through a transmission path for each of the channels.

Abstract: A method includes establishing a modem connection, receiving an on-hold request over the modem connection, comparing a cumulative time that the modem connection has been on hold to a threshold value, and resolving the on-hold request based upon the comparison.

Abstract: Precise operation of an accelerator operating member (7) is more difficult to perform in a reversing operation of a vehicle (1) as compared with an advancing operation. Therefore, behavior of the vehicle (1) is not smooth and thus tends to be unnatural. In the reversing operation of the vehicle (1), driving force output from an internal combustion engine (2) is limited in accordance with vehicle acceleration (D). At this time, it is possible to regulate the driving force of the vehicle (1) in conformity to the actual operation of the accelerator operating member (7) by the driver. In addition, limitation of the driving force is not executed in the advancing operation of the vehicle (1). At this time, the vehicle (1) can be driven in a state in which the driving force is comparatively small. Therefore, it is possible to prevent the behavior of the vehicle (1) from being unnatural.

Abstract: A method, system, and apparatus for attenuating a dialing confirmation tone includes receiving an enable signal from a tactile user input device, generating at least one dual-tone multiple frequency (DTMF) tone, and communicating the at least one DTMF tone to a telephone line. The method further includes attenuating a signal level of the at least one DTMF tone by a predetermined amount to produce at least one attenuated dialing confirmation tone in response to receiving the enable signal, and communicating the at least one attenuated dialing confirmation tone to an audio output device.

Abstract: A computer system (a method) for exchanging information such as a Universal Resource Locator (URL) or a Universal Resource Identifier (URI) over a communication channel in general and over a telephone communications channel in particular in a unified communications system is disclosed. In one embodiment, the system comprises a phone URL exchange unit configured to receive a phone URL exchange request from a first endpoint, to determine the URL to be sent and URL encoding method based on the request, to encode the URL into audio data or as a part of the communications control signals using the URL encoding method and to send the encoded data to a second endpoint over the telephone communications channel. The phone URL exchange unit is further configured to receive audio data or the communications control signals embedded with a URL and to decode the received data to reveal the URL.

Abstract: A reconfigurable wireless modem adapter is provided. The reconfigurable wireless modem adapter includes a control board and a radio frequency switch. The control board has at least two interfaces for a respective at least two modems and is configured to communicatively couple to at least one onboard system in a vehicle. The control board activates a selected modem interfaced to one of the at least two interfaces. The radio frequency switch is communicatively coupled to the control board via the selected one of the at least one modem. The radio frequency switch communicatively couples an antenna to the selected modem. When the control board is communicatively coupled to the at least one onboard system and activates the selected modem, and when the radio frequency switch is communicatively coupled to the antenna, the antenna is communicatively coupled to the at least one onboard system via the selected modem.

Abstract: A reconfigurable wireless modem adapter is provided. The reconfigurable wireless modem adapter includes a control board and a radio frequency switch. The control board includes at least two user-data interfaces for respective at least two modems, the modems including at least one diversity/multiple-input-multiple-output (MIMO) modem. The control board is configured to communicatively couple to at least one onboard system in a vehicle and to activate one of the at least one diversity/MIMO modem interfaced to one of the at least two user-data interfaces. The radio frequency switch is communicatively coupled to the control board via a modem-select interface and the selected one of the at least one diversity/MIMO modem. The radio frequency switch communicatively couples one of at least one diversity/MIMO antenna on the vehicle to the selected one of the at least one diversity/MIMO modem based on a control signal.

Abstract: A method for ringtone, voice, and sound notification of printer status, comprising obtaining status information of a printer, converting it into an audible report, and delivering the audible report. The method is especially useful for visually-impaired users and for shared printers in crowded situations where it is difficult for each user to see the panel or monitor display. The methods also include detection by the events controller, UI manager instructing an audio manager, codec decoding an audio file in firmware and hardware organization; job owner identification information embedded into a print job with a unique tag; user identification sound data embedded in a print job; audible report for multiple jobs in a job queue, with positional information; text-to-speech conversion; unique ringtone melody for each user, comprising department prefix, higher pitch modulation for higher priority, and automatically converting an alphanumeric character into the corresponding note.

Abstract: A system and method for generating one-way speech signal samples may include, in a telecommunications network, establishing a call connection between a far-end telephone and a near-end telephone. A resistance component may be selectively configured in parallel with the far-end telephone, where the resistance component has a value representative of resistance produced by the far-end telephone being off hook. A speech signal being communicated from the near-end telephone may be recorded.

Abstract: A computer implemented method and computer program product for managing conversational input. The process authenticates a user on a device in a set of communication devices for manipulating conversation stubs. The process monitors an exchange of conversation for a triggering event on the device in a set of communication devices. Responsive to detecting the triggering event, the process generates a conversation stub that contains information relating to the topic of conversation. The conversation stub is stored in a storage device located remotely to the set of communication devices. Responsive to receiving a selection of the conversation stub, the process presents the conversation stub on a communication device selected from the set of communication devices.

Abstract: In a particular embodiment, the disclosure is directed to a method of making a digital subscriber line (DSL) connection to a remote network. The method includes detecting the presence of a powered-on network capable device that is connected to a DSL modem; establishing a network connection over a DSL line to the remote network after detecting the presence of the powered on network capable device; terminating the network connection over the DSL line after detecting an absence of network capable devices connected to the DSL modem; and releasing network resources supported by the remote network after the network connection is terminated.

Abstract: A method for providing communication protocol interoperability may include receiving a request from a first endpoint to establish a communication session with a second endpoint, the request uses a first communication protocol. The method also includes receiving a first response from the second endpoint, the first response uses a second communication protocol different than the first communication protocol. The method may also include initiating a timer for receiving a set of capabilities from the second endpoint and establishing the communication session between the first endpoint and the second endpoint.

Abstract: A method and apparatus for selectively terminating sealing current in an asymmetric digital subscriber line modem is provided. The technique comprises providing a mechanism (e.g., a resistor or suitable current sink) to a DSL modem (e.g. an ADSL modem or any XDSL modem used where POTS is underlying service). The mechanism is operable to be dynamically switched on and off and to operate under low current conditions. The system allows for provision of DSL (e.g., ADSL or XDSL where POTS is the underlying current) in the absence of plain old telephone service (POTS) and for improved performance.

Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.

Abstract: An xDSL modem apparatus for installation on a telephone jack wall plate. The apparatus includes a port for transmitting and receiving carrier waves, a low-pass filtering means, a high-pass filtering means, and a band-pass filtering means. The low-pass filtering means isolates low-frequency component of a received composite carrier wave below a first frequency and transmitting the isolated low-frequency component of the composite carrier wave. The high-pass filtering means isolates a high-frequency component of the composite carrier wave above a second frequency. The band-pass filtering means isolates a power component of the composite carrier wave, the power component being in a frequency range between the first and second frequencies. The apparatus also includes an xDSL modem for demodulating the high-frequency component of the composite carrier wave in order to recover a computer readable bitstream and for modulating a high-frequency carrier wave with a received computer readable bitstream.

Abstract: Indirect digital subscriber line (DSL) service generally involves connecting conversion equipment that converts between DSL service delivered to a customer premises and DSL service that connects back to a data network. Indirect DSL service may be delivered on the same loop to the customer premises that also carries a native 0-4 KHz POTS interface. For larger deployments, the conversion equipment may include inverse multiplexing to combine multiple links back to the data network to support DSL service. Furthermore, the conversion equipment may include functions to digitize the POTS service. Aggregating DSL data from multiple customers and/or digitizing POTS service that may be multiplexed with the DSL data allows for significant pair gain opportunities.

Abstract: The present invention is directed to a network communication system that provides textual communication and call transferring between nodes. The system further allows simultaneous notification of multiple nodes of an incoming call. The system includes a local computer that may also serve as a node in the system. A call may originate with the local computer or be generated by a remote device that is in communication with the local computer. The local computer generates a call indicator that is transmitted to one or more nodes simultaneously. Selection of the nodes may be based on user intervention or by predefined groupings. Each node receiving a call indicator is configured to generate a ring message in response. The ring message is displayed on an output device to alert a node user to the incoming call. In response to the ring message, a node user may choose to accept or decline the call. A node user's responses to the call indicator are transmitted to the local computer.

Abstract: The preferred embodiments of the present invention generally provide improved communications over a subscriber loop that is loaded with at least one and potentially a plurality of load coils. The preferred embodiments of the present invention will support digital subscriber line service over loaded subscriber loops that also support a native POTS interface and offer various techniques for advantageously arbitrating use of the 0-4 KHz baseband between POTS and DSL. Furthermore, the rapid start and stop DSL modulation techniques as well as various mechanisms such as protocol spoofing allow DSL service to appear to be always-on for many end user applications even though DSL communication may cease for POTS signaling messages and completed POTS telephone calls.

Abstract: Conventional modems coupled in parallel to a coupling need a sharing apparatus, which can be avoided by providing each modem with a detector for detecting upstream/downstream signals to be transceived by other modems coupled in parallel. The detector has a distinguisher for distinguishing upstream signals and downstream signals. An additional filter between the coupling and detector prevents the modem from interfering with the other modems coupled in parallel. The modem may have an active/passive state corresponding with a lower/higher impedance.

Abstract: Remote access and configuration of a digital subscriber line (DSL) device using a telephone line. From a remote location, an operator can access the DSL device and receive data, including an operational parameter regarding the device, and upload an operational parameter or firmware, and thus, establish the operational configuration of the device. Also from a remote location, an operator can troubleshoot and provide technical support functions for the device.

Abstract: Devices, softwares and methods selectively limit a duration of an individual modem-on hold session. A network device receives and holds data for an individualized on-hold timeout time limit for each user, such as an ISP subscriber.

Abstract: A data modem aggregator system and a method of initializing a data modem is disclosed. In a particular embodiment, the data modem aggregator system includes a plurality of data ports configured to communicate data traffic. The data traffic is carried over dedicated data twisted pair lines. The data modem aggregator system further includes shared data processing resources to process the data traffic communicated over the plurality of data ports and a high-speed multiplexed output responsive to the plurality of data ports and the shared resources. In a particular embodiment, the method of initializing a data connection for a data modem includes detecting power-on of the data modem, handshaking from the data modem with a far end connection, negotiating a data rate with the far end connection, and communicating data between the data modem and the far end connection over a dedicated data twisted pair line.

Abstract: The present invention establishes a communications link between a central office (CO) modem and a customer premise equipment (CPE) modem. The CO modem then evaluates the performance of the communications link. Impairments on the communications link are identified based on the evaluation results. Next, adjustment parameters for improving the performance of the communications link are determined. The CPE modem is then modified in accordance with the determined adjustment parameters to establish an adjusted communications link between the CO modem and the CPE modem. In this way, impairments such as bridged taps and cross-talk can be avoided.

Abstract: A system enhances automation of activating network service between a customer modem and a central office modem over a digital subscriber line (DSL) link. The central office modem couples the customer modem to a network for providing the network service. The system comprises a polling system coupled with the central office modems. The polling system polls inactive central office modems in order to detect the presence of an associated customer modem. A discovery application is coupled with the polling system and the central office modems for selectively enabling ones of the central office modems in accordance with a result of the polling system. If the polling system detects the presence of the customer modem, the associated central office modem is enabled for providing network service to a customer.

Abstract: An improved telecommunication device for simultaneous and independent communication of analog signals and digital data is disclosed. Processing of analog signals enables functions including, for example, message saver, speaker phone, caller identification and fax. Processing of digital data enables functions, including, for example, DSL modem communications, digital voice communications, video communications, and voice-over-data communications. The disclosed system may operate independently or coupled to one or more computers.

Abstract: A method for handling an off-hook event can include the step of detecting an off-hook event with a modem communicatively linked to a circuit loop in which the off-hook event occurs. The detection can be based upon audible information conveyed within the circuit loop. At least one programmatic action can be initiated with a computing device communicatively linked to the modem. An off-hook notification can be conveyed as a result of the programmatic action.

Abstract: Devices, softwares and methods limit the total Modem-On-Hold (“MOH”) timeout time of a single log-in session. When a logged in user requests a Modem-On-Hold session, a server counts the cumulative time spent during individual MOH sessions. Once a limit is exceeded, then subsequent MOH requests are denied.

Abstract: A modem includes a Digital Access Arrangement (DAA) Circuit and modem software that is executed by a processor. When the DAA Circuit detects that the modem software is nonfunctional, it enters an on-hook state to prevent blocking of a coupled telephone line. A nonfunctional state of the modem software is detected when the modem software ceases to interact with the DAA Circuit in an expected manner. In a first operation, the nonfunctional state is determined when the modem software does not reset a count down timer in the DAA Circuit before the count down timer reaches a termination value. In a second operation, the nonfunctional state is determined when the modem software does not access the DAA Circuit before the count down timer reaches the termination value. In a third operation, the nonfunctional state is determined when the modem software ceases writing transmit data to DMA memory.

Abstract: A signal classifier decomposes a subject signal into subbands. The signal classifier then analyzes the subbands for a presence of energy and uses detection logic to classify the energy as being representative of a frame of a signal using one of the following protocols: DTMF, MF-R1, ANS (V.25), LEC-DIS, V.21, or AA (i.e., telephone, facsimile, or modem). The detection logic is expandable to detect future protocols. The classifier may employ a preclassifier to select a reduced number of notch filters from among plural notch filters at frequencies which sinusoidal signals composing the energy in the subbands of the protocols may be found. A look-up table having predetermined ranges of data corresponding to the frequencies of the sinusoidal signals may be used to reduce calculation times. By splitting the subject signal into subbands and using efficient filters, the classifier uses an order of magnitude fewer processor instruction cycles than previous classifiers.

Abstract: A method for configuring a multi-port digital subscriber line (DSL) modem, the method begins by utilizing frequency bands of a single DSL channel to support a data communication when loop length of the single DSL channel and data rate of the data communication are favorable. The method continues by utilizing some of the frequency bands of the single DSL channel and frequency bands of at least one other DSL channel to support the data communication when the loop length of the single DSL channel is unfavorable or the data rate of the data communication is unfavorable.

Abstract: A method for communication includes modulating a stream of data in accordance with a voice-band modem specification, so as to generate a modulated signal. The modulated signal is up-shifted to generate a passband signal, which is transmitted over a telephone line simultaneously with a baseband voice signal.

Abstract: Disclosed is an initializing method of an xDSL modem in which a gain of an amplifier for the reception is set to the maximum to detect a received signal when a communication channel is established and to determine whether, after requesting to establish the communications channel, the received signal is noise or a real xDSL signal.

Abstract: A modem includes a Digital Access Arrangement (DAA) Circuit and modem software that is executed by a processor. When the DAA Circuit detects that the modem software is nonfunctional, it enters an on-hook state to prevent blocking of a coupled telephone line. A nonfunctional state of the modem software is detected when the modem software ceases to interact with the DAA Circuit in an expected manner. In a first operation, the nonfunctional state is determined when the modem software does not reset a count down timer in the DAA Circuit before the count down timer reaches a termination value. In a second operation, the nonfunctional state is determined when the modem software does not access the DAA Circuit before the count down timer reaches the termination value. In a third operation, the nonfunctional state is determined when the modem software ceases writing transmit data to DMA memory.

Abstract: A combination modem including at least one line connector that is configured for coupling to a transmission medium, analog modem logic that is capable of performing analog modem communications via the transmission medium, digital modem logic that is capable of performing digital modem communications via the transmission medium, a bus interface that enables communication with a computer via an expansion bus of the computer, and processing logic. In this manner a single modem expansion card supports both analog and digital modem technologies using only one slot of an expansion bus of the computer. The analog modem logic may support 56K technologies, such as K56Flex™, V.90, etc., or any combination thereof. The digital modem logic may be according to any type of xDSL, such as ADSL, or U-ADSL, etc. The modem may operate as an analog modem, a digital modem, or as both at the same time with or without a POTS splitter.

Abstract: The present invention establishes a communications link between a central office (CO) modem and a customer premise equipment (CPE) modem. The CO modem then evaluates the performance of the communications link. Impairments on the communications link are identified based on the evaluation results. Next, adjustment parameters for improving the performance of the communications link are determined. The CPE modem is then modified in accordance with the determined adjustment parameters to establish an adjusted communications link between the CO modem and the CPE modem. In this way, impairments such as bridged taps and cross-talk can be avoided.

Abstract: A method for configuring a multi-port digital subscriber line (DSL) modem, the method begins by utilizing frequency bands of a single DSL channel to support a data communication when loop length of the single DSL channel and data rate of the data communication are favorable. The method continues by utilizing some of the frequency bands of the single DSL channel and frequency bands of at least one other DSL channel to support the data communication when the loop length of the single DSL channel is unfavorable or the data rate of the data communication is unfavorable.

Abstract: A method of allowing a telephone network user to initiate a call feature request during an in-progress call using a conventional touch tone telephone with a telephone handset and conventional touch tone telephone keys. The method includes receiving and recognizing a touch tone signal resulting from the user pressing one or more of the telephone keys, recognizing a user spoken predetermined voice command, then interpreting the touch tone signal and voice command as a request for a call feature. The call feature is then provided in accordance with the request.

Abstract: The present invention is a method of communicating within a phone line LAN. The method includes the assignment of a unique VLAN ID to each node of a VLAN. A VLAN header is attached at a source node of the frame to each frame to be communicated within the VLAN. The VLAN header contains identification information associated with the VLAN. The VLAN header is inserted by a network interface device driver into a frame header. Data communication within the VLAN is controlled at the nodes of the VLAN by examining incoming frames for the presence or absence of the VLAN header. The VLAN header is stripped at the destination nodes of the VLAN from the frame header and a remaining part of the frame is passed to a software device driver arrangement.

Abstract: The present invention establishes a communications link between a central office (CO) modem and a customer premise equipment (CPE) modem. The CO modem then evaluates the performance of the communications link. Impairments on the communications link are identified based on the evaluation results. Next, adjustment parameters for improving the performance of the communications link are determined. The CPE modem is then modified in accordance with the determined adjustment parameters to establish an adjusted communications link between the CO modem and the CPE modem. In this way, impairments such as bridged taps and cross-talk can be avoided.

Abstract: A method and apparatus for verifying call waiting information in a communication system is particularly well suited for correcting mispronunciation of caller identification information provided for a call waiting call. A current pronunciation of the call waiting information is provided to the calling party who is prompted to change the current pronunciation. The system receives a new pronunciation of the call waiting information and stores information about the new pronunciation for subsequent retrieval.

Abstract: A communication system includes a plurality of subscribers having a telephone set and different types of home modems coupled using twisted pairs to a local server that includes a plurality of downstream repeaters, a central office coupled to a local server using twisted pair subscriber lines. The central office includes a telephone switch that provides telephone service to the subscribers and a concentrator that connects a plurality of upstream repeaters with a number of office modems that provide data service to the subscriber. A communication system uses CAP or DMT line signals with time division. The line signal transmits with different time framing. Every subscriber line can work in one of three operation modes Asymmetrical mode, Half-Asymmetrical mode, and Symmetrical mode.

Abstract: A configurable multi-port modem includes a plurality of hybrids, a plurality of receivers, a plurality of transmitters, and a switching module. Each of the plurality of hybrids is operably coupled to provide 2 to 4 wire coupling for a corresponding one of a plurality of twisted pairs that are coupled to the configurable multi-port modem. Each of the plurality of receivers is operably coupled to convert inbound DSL signals into inbound data. Each of the plurality of transmitters is operably coupled to convert outbound data into outbound DSL signals. The switching module is operable to couple at least one of the plurality of hybrids to at least one of the plurality of receivers and to at least one of the plurality of transmitters based on a configuration control signal.

Abstract: The present invention includes a method and system to provide the capability of a serial based analog modem to play its connection call progress in a digital format, thus eliminating the need for analog to digital conversion at the host. In one aspect of the invention, an exemplary method includes receiving data at the serial communication device, from a serial communication network; identifying the data as call progress audio samples; transmitting the call progress audio samples to the host through the serial interface, the serial interface carrying serial data or call progress audio samples; and playing the call progress audio samples at the audio system of the host. Other methods and apparatuses are also described.

Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.

Abstract: An asymmetric digital subscriber line transceiver unit-card (ATU-C) and a method of controlling the same. The ATU-C includes: a power supply unit; a plurality of modems to be connected to a plurality of asymmetric digital subscriber line transceiver unit-remote (ATU-R) for subscribers; a plurality of power switches for selectively supplying power generated by the power supply unit to the modems; and a microprocessor for controlling the operation of the power switches depending on the connection status between the subscribers and the modems.

Abstract: A fast startup procedure for a modem system utilizes known characteristics of a previously established communication channel to reduce the initialization period associated with subsequent connections over the same channel. In response to the establishment of a call, the modem devices determine whether the fast connect protocol is supported. If so, then the called modem transmits a modified answer tone to the calling modem. The calling modem analyzes the signal received in response to the modified answer tone to determine whether characteristics of the current channel are similar to stored characteristics associated with a previous connection over the same channel. If a channel “match” is found, then the modem devices carry out a fast initialization routine that eliminates, abbreviates, or modifies a number of procedures or protocols that are carried out in conventional modem startup processes.