Abstract: A space division method includes: receiving a first sound signal that is a medium-high frequency sound signal; decoding the first sound signal by specified decoding to obtain device information of a sound source device that emits the first sound signal; and generating space division information when the device information of the sound source device is successfully obtained, wherein the space division information is configured to indicate that the sound source device and the sound collection device are located in the same spatial region.

Abstract: A pre-distortion system for improved mobile device communications via cancellation of nonlinear distortion is disclosed. The pre-distortion system may transmit an acoustic signal from a network to a device, wherein the acoustic signal includes a linear signal and a nonlinear cancellation signal that cancels at least a portion of nonlinear distortions created once a loudspeaker in the device emits the linear signal. Thus, when a loudspeaker of a mobile device is operating and nonlinear distortions are generated by the loudspeaker or adjacent components of the mobile device in close proximity to the loudspeaker, the pre-distortion system may create one or more nonlinear cancellation signals in the network. The nonlinear cancellation signal may be combined with the linear signal sent to the loudspeaker to cancel the nonlinear distortion signal created by the loudspeaker emitting acoustic sounds from the linear signal. Thus, the nonlinear cancellation signal becomes a pre-distortion signal.

Abstract: A wireless phasing voltmeter determines the phase difference between the voltage carried by a reference electrical conductor and a field conductor. The voltage signal from the reference conductor is detected by a first unit and compared to a precision 60 Hz wave form generated from a first 1 pps GPS signal. The phase difference between the wave form and the reference conductor, represented by nine data bits, is used to modulate a radio frequency carrier wave and transmitted via simplex transmission to a second unit near an electrical conductor in the field. The second unit receives the modulated carrier wave, decodes the phase angle difference and compares it to a second phase angle difference between the voltage on the field conductor and a second precision 60 Hz wave form generated from a second 1 pps GPS signal. The difference between the two phase differences determines the phase of the field conductor.

Abstract: A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: Techniques have been developed for transmitting and receiving information conveyed through the air from one portable device to another as a generally unperceivable coding within an otherwise recognizable acoustic signal. For example, in some embodiments in accordance with the present invention(s), information is acoustically communicated from a first handheld device toward a second by encoding the information in a signal that, when converted into acoustic energy at an acoustic transducer of the first handheld device, is characterized in that the acoustic energy is discernable to a human ear yet the encoding of the information therein is generally not perceivable by the human. The acoustic energy is transmitted from the acoustic transducer of the first handheld device toward the second handheld device across an air gap that constitutes a substantially entirety of the distance between the devices.

Abstract: A home appliance and a home appliance system are disclosed. Product information and status information of the home appliance are converted into at least one transmission acoustic signal, and a sound corresponding to the at least one transmission acoustic signal is output to the outside. The product information and status information are formed as a digital signal and stored in a storage device. The digital signal is encoded through a conversion device, and converted into at least one transmission acoustic signal. The at least one transmission acoustic signal is formed as an analog signal. Meanwhile, the at least one transmission acoustic signal can be dividedly formed.

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 teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: A communication apparatus through which voice communication can be performed, including: a line interface portion which receives and transmits data form and to a line and which includes a data access arrangement device in which is incorporated a detection circuit that detects at least one of a line voltage and a line current; a voice reproducing device which reproduces a voice that is based on voice communication data transmitted from the line to the line interface portion; and a volume adjuster which adjusts reproduction volume with which the voice is to be reproduced by the voice reproducing device, on the basis of a detected value of the detection circuit.

Abstract: A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: An approach to scoring acoustically-based events, such as hypothesized instances of keywords, in a speech processing system make use of scores of individual components of the event. Data characterizing an instance of an event are first accepted. This data includes a score for the event. The event is associated with a number of component events from a set of component events, such as a set of phonemes. Probability models are also accepted for component scores associated with each of the set of component events in each of two of more possible classes of the event, such as a class of true occurrences of the event and a class of false detections of the event. The event is then scored. This scoring includes computing a probability of one of the two or more possible classes for the event using the accepted probability models.

Abstract: Acoustic input and output devices are made to operate properly according to communication processing. A portable communication terminal includes an acoustic input-output unit including a plurality of acoustic input elements to conduct acoustic inputting and acoustic output elements to conduct acoustic outputting, a communication . processing unit which selectively executes mutually different communication processes using at least one of the elements included in the acoustic input-output unit, and an acoustic processing unit which determines an order of operation of the acoustic input-output unit to be conducted by the elements according to a communication process executed by the communication processing unit and gives the determined operation order to the acoustic input-output unit.

Abstract: A method of using a telecommunications network cashless transaction service is provided, in which a user accesses the service using a network access instrument, such as a mobile phone which produces a signal. The signal is forwarded to an interface device of the network, which extracts service and user identity data therefrom, and passes the data to a processing unit for the service of the network. The service processing unit processes the data, instructs the interface device to forward the access instrument signal to an input output device of the network, and instructs the input output device to request transaction details from the user. The details are sent to the input output device, which passes them to the service processing unit which processes the details and decides whether or not the transaction can proceed, causes output of a signal conveying acceptance or rejection of the transaction to the user, and, if the transaction can proceed, arranges for the transaction to be carried out.

Abstract: A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: An embedded device configured to provide an audio status output is disclosed. The embedded device includes a processor, an input button in electronic communication with the processor and a speaker in electronic communication with the processor for outputting an audio output. Memory is used for storing data. An audio output generator is stored in the memory and operates to generate the audio status output. The audio generator receives a generate audio command initiated by a user through use of the input button. The generator then operates to convert the status data to audio output data through use of an audio generation table. The audio output data includes multiple distinct audio signals that are machine-decipherable and that correspond to individual data elements of the status data. The audio output data is provided to the speaker such that the audio output based on the audio output data is generated.

Abstract: A system comprises an acoustic coupling product label (20) for mounting on a product to be serviced. The label (20) includes a memory (23) for storing information relating to the product to be serviced, control means (29) for controlling the flow of data from the label (20), an activation switch (22), and an acoustic transducer that emits tones corresponding to said product information. The system further includes a telephone (30) and a computerized product support system (50), which collects and interprets the information provided by the label (20). The control means (29) is arranged to control the flow of data from the label (20) to the system (50) at a rate and time required by the system (50).

Abstract: A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: A DTMF generating device for automatically generating DTMF tones corresponding to a predefined phone number comprises a processor, a memory, and a speaker enveloped in a credit card sized casing. The memory has stored therein DTMF tone samples corresponding to the predefined phone number. When a user presses on a portion of the casing, the DTMF tone samples are played by the speaker.

Abstract: A telephone including a removable DSL filter cartridge is disclosed. The telephone includes a location adapted to receive a filter cartridge. The filter cartridge is designed to fit inside the location provided on the telephone. The filter cartridge includes a first end that electrically connects the filter cartridge to the telephone and a second end that faces outwards. The second end includes a DSL port so that users can plug DSL devices directly into the port. The filter cartridge includes a DSL filter to help eliminate unwanted noise on the telephone line and the filter cartridge is designed to be easily removable.

Abstract: A method and apparatus for secure access to secured system functions utilizing a universal access card. The card includes a bank of tuned amplifier circuits and tuned audio transducers to maximize audio output power from the card, such as for telephone communications. The card includes a variety of other interfaces for the user to communicate with a secure access central system. The card includes a keypad, signature input pad, voice audio input, and fingerprint input, to capture data from a user to determine whether the user is an authorized user. The user utilizes the card to conduct a secure access authorization process with the central. After the card and user are authenticated, the user can access certain functions of a system.

Abstract: A technique is provided for an electrical device to automatically detect one of a plurality of interface standards to operate in accordance with. More particularly, a direct access arrangement (DAA) for communicating with telephone lines is provided for utilization with modem communications over a phone line. The DAA may be configured to automatically detect and operate in accordance with a plurality of interface standards for communications to a host system. For example, the DAA may detect that communications are to be provided in accordance with the AC-97 interface standard or the Azalia interface standard. In one embodiment, a clock signal may be monitored to determine the proper interface mode. In another embodiment, the automatic detection of the proper interface mode may be accomplished by monitoring the data presented to the DAA through the interface standard.

Abstract: A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: An embedded device configured to provide an audio status output is disclosed. The embedded device includes a processor, an input button in electronic communication with the processor and a speaker in electronic communication with the processor for outputting an audio output. Memory is used for storing data. An audio output generator is stored in the memory and operates to generate the audio status output. The audio generator receives a generate audio command initiated by a user through use of the input button. The generator then operates to convert the status data to audio output data through use of an audio generation table. The audio output data includes multiple distinct audio signals that are machine-decipherable and that correspond to individual data elements of the status data. The audio output data is provided to the speaker such that the audio output based on the audio output data is generated.

Abstract: The present invention provides systems and methods for the communication of data over telephone lines. A handset orientation tolerant bi-directional acoustic modem according to the invention includes a first transducer operable as a receiving unit under a first condition and as a transmitting unit under a second condition, a second transducer operable as a transmitting unit under the first condition and as a receiving unit under the second condition, and a controller capable of determining the presence of one of the first and the second condition. The presence of the first condition or second condition depends on how the microphone and the speaker of a telephone handset are aligned with respect to the two transducers. The acoustic modem determines the alignment by listening for a detectable dial tone, and then under the first or the second condition, the acoustic modem automatically transmits data to a central site for analysis.

Abstract: The present invention provides systems and methods for the communication of data over telephone lines. A handset orientation tolerant bi-directional acoustic modem according to the invention includes a first transducer operable as a receiving unit under a first condition and as a transmitting unit under a second condition, a second transducer operable as a transmitting unit under the first condition and as a receiving unit under the second condition, and a controller capable of determining the presence of one of the first and the second condition. The presence of the first condition or second condition depends on how the microphone and the speaker of a telephone handset are aligned with respect to the two transducers. The acoustic modem determines the alignment by listening for a detectable dial tone, and then under the first or the second condition, the acoustic modem automatically transmits data to a central site for analysis.

Abstract: A method and a system of transmitting a binary data sequence in voice form, the system comprising a pilot oscillator (OS), an FSK type modulator circuit (3) receiving said sequence, an intermediate processor circuit (5), and a piezoelectric transducer (P). A logic excitation signal is applied to the terminals (b1, b2) of the transducer (P) and is integrated by means of the capacitive portion of the impedance of the transducer (P) so as to reconstitute an acoustic signal having a sinusoidal waveform which is emitted by the transducer (P) at a voice frequency which differs depending on the logic state of the bit to be transmitted.

Abstract: An acoustic communication terminal apparatus for performing data communication over a telephone line by using an acoustic coupler has an error number counter for counting the number of errors occurring during communication. With a control signal based on the result of this counting performed by the error number counter, the gain of an amplifier circuit provided in an acoustic output section of a transmitter portion of the apparatus is switched, and also the gain of an amplifier circuit provided in an acoustic input section of a receiver portion of the apparatus is switched. Alternatively, with the above control signal, the frequency filtering characteristics of an input filter circuit provided in the acoustic input circuit is switched.

Abstract: A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a voice mode connecting a telephony circuit to the communication path. The teleconferencing system is adapted for conducting a voice conference over standard telephone lines while allowing simultaneous viewing of data objects such as slides, graphs, or text. A host computer connected to the central station serves as a central repository for storage and retrieval of data objects for use in teleconferences.

Abstract: An acoustic coupling product label including a product identification number and/or other pertinent service information is provided which uses a standard telephone to provide information to a computerized product support system.

Abstract: A coupler enabling communication of information between a communication device, such as a PIM device, and an acoustic device, such as a telephone, using acoustic tones. The coupler includes a speaker for transmitting information in the form of acoustic tones to the acoustic device and a speaker for receiving acoustic tones from the acoustic device. The coupler may also include an adjustment mechanism which facilitates coupling between the microphone and an earpiece of the acoustic device and between the speaker and a mouthpiece of the acoustic device. The microphone and speaker positions may be adjustable to adapt to a variety of telephone handset styles, such as cellular telephones or cordless telephones.

Abstract: The present invention is directed to a novel system and method for connecting and interfacing a communications device, such as a modem, to a two-wire telephone line via a telephone base set, thereby allowing for data or voice communications on the telephone line. The modem and the telephone base are interconnected by way of an interface adapter, which also provides a connector for connecting the telephone's handset. Relay circuitry present within the interface adapter automatically switches between a data mode state and a voice mode state, depending upon what kind of communication is desired over the telephone line. In a preferred embodiment, the system also includes a cable detector circuit that allows the modem to automatically detect when it is connected to a telephone base by way of the interface adapter. Also disclosed, is a novel method for programming the host computer connected to the modem, and the communication processor located on the modem.