Abstract: A player and an AV amplifier are connected via a cable. An amplifying device amplifies an output signal supplied to an output terminal 14, and outputs the amplified output signal as a transmission signal to the cable. An amplifying device amplifies an output signal supplied to an output terminal, and outputs the amplified output signal as a transmission signal to a cable. An operation device subtracts the output signal supplied to the output terminal from the transmission signal output to the cable. An operation device subtracts the output signal supplied to the output terminal from the transmission signal output to the cable. Therefore, the transmission signal from the AV amplifier is supplied to an input terminal, and the transmission signal from the player is supplied to an input terminal. The transmission signal includes a two-way communication bit indicating whether two-way communication is enabled.

Abstract: An interface circuit includes: a first transmitting section transmitting a first signal as an in-phase signal to an external device through a transmission path; and a second transmitting section transmitting a clock signal, which is synchronized with the first signal to be transmitted by the first transmitting section, as a differential signal to the external device through the transmission path.

Abstract: A transfer device includes: a first network connection control section that controls connection to a first network enabling transfer of content data and/or control data using a first address assigned by a key device in the network; a second network connection control section that controls connection to a second network enabling transfer of content data and/or control data using a second address assigned by a device having a routing function; and an address table that stores the correspondence between the first address of devices on the first network connected via the first network connection control section and the second address of the devices on the second network connected via the second network connection control section.

Abstract: A transport signal transmitted from a television receiver apparatus 720 through a signal line 708 is subjected to a separation operation by a transport-signal processor 713 and decoded by a video-signal decoding unit 714 and an audio-signal decoding unit 715. A decoded video signal is supplied through a signal line 701 to the television receiver apparatus 720. Video processing time of the television receiver apparatus 720 is obtained by a delay-information obtaining unit 716 through a signal line 703. An audio-signal delaying unit 717 delays an audio signal decoded by the audio-signal decoding unit 715 in accordance with the video processing time obtained by the delay-information obtaining unit 716 and outputs the audio signal to a speaker 750.

Abstract: In order to satisfactorily transmit audio data of various formats through a transmission line, when data having a predetermined data length as a unit is transmitted by a predetermined format between devices connected to a predetermined transmission line, label data indicating a system of transmitted audio data is located at a starting portion of the data having the predetermined data length, sub-label data is located at an interval behind label data if necessary and data accompanying with audio data is located and transmitted, whereby a side which receives this data can easily identify a system of audio data or the like.

Abstract: A driving device has a magnetostrictive actuator that drives a load member based on a driving signal, a sensor that detects an action of the load member, and a compensation unit that performs feedback compensation on the driving signal which the magnetostrictive actuator receives, based on a detection signal that is received from the sensor.

Abstract: A differential drive circuit includes at least a first or second drive system. The first drive system has first and second field effect transistors, first and second resistors, and first and second circuits controlling the source voltages of the first and second field effect transistors to equal first and second drive target voltages, the first and second field effect transistors having sources connected to a power potential via the first and second resistors, respectively. The second drive system has third and fourth field effect transistors, third and fourth resistors, and third and fourth circuits controlling the source voltages of the third and fourth field effect transistors to equal third and fourth drive target voltages, the third and fourth field effect transistors having sources connected to a reference potential via the third and fourth resistors, respectively. A common-mode voltage is driven to form a constant differential signal across a load resistance.

Abstract: A recording medium that technically makes it not only impossible to infringe copyrights but possible for a buyer who properly bought contents to personally freely reproduce and enjoy the contents. A recording medium comprises a first recording region (3) where the contents encrypted by a contents key are recorded in advance, a second recording region (5) where a data providing a basis for the contents key is recorded in advance and a third recording region (4) that allows the encrypted contents key obtained by encrypting the contents key generated from the data providing a basis for the contents key by means of identification information on a user to be recorded therein.

Abstract: An electromechanical transformation device has a magnetostrictive actuator and a driving device that drives the magnetostrictive actuator. The driving device drives the magnetostrictive actuator based on any one of the vibration signal and the audio signal or mixed signal of them.

Abstract: A signal processing system is provided, which includes a first converter for converting first information in to second information, a superimposer for superimposing on the second information control information corresponding to any missing information lost from the first information due to its conversion by the first converter. Furthermore, the signal processing system includes a transmitter for transmitting the second information, a receiver for receiving the second information transmitted from the transmitter, and an extractor for extracting the control information from the second information. The signal processing system also includes a second converter for converting the second information in to third information based on the control information extracted by the extractor, and an output portion for outputting the third information.

Abstract: An audio signal processing apparatus includes a localization direction detector that detects localization directions of two-channel input audio signals, a localization direction distribution calculator that calculates a distribution of the localization directions detected by the localization direction detector, a gain table information recording unit that records gain table information defining weights corresponding to respective localization angles, a gain generator that generates a gain corresponding to an output audio signal on the basis of the distribution calculated by the localization direction distribution calculator and the gain table information recorded in the gain table information recording unit, and a synthesizing unit that synthesizes the two-channel input audio signals using the gain generated by the gain generator.

Abstract: A data converting apparatus is disclosed which receives packet data made of content data supplemented with recording control information to be referenced upon recording of the content data. When the data converting apparatus outputs the received packet data to another apparatus, the converting apparatus converts the recording control information to a specific value if the other apparatus is expected to function normally only by use of that specific value replacing the recording control information.

Abstract: An audio data transmitting device with a varying channel count which on the transmission side includes, data of n channels divided into blocks each defined for m channels where n?m. In addition, prior to a transmission of the audio data, a transmitted-data stream matching a predetermined transmission format is generated to include determination information used for determining which portions of each block is allocated to which portions of each block containing no valid data. On the reception side, the determination information included in the received transmitted-data stream matching the predetermined transmission format is used to identify the unused channels not assigned to valid data in each of the blocks composing the transmitted-data stream which allows data of the valid channels to be extracted from the stream.

Abstract: A video and audio processing system includes an output apparatus that outputs video data and audio data to be synchronized and reproduced; an audio processing apparatus that receives the video data and the audio data from the output apparatus, supplies at least the video data to a downstream apparatus, and processes the audio data to generate an audio signal to be supplied to a speaker; and a video processing apparatus that receives the video data output from the audio processing apparatus and generates a video signal used for displaying video. The video processing apparatus includes video signal processing means, control means, and determining means for determining a processing time. The video and audio processing system delays the audio signal to be supplied to the speaker so as to be synchronized with the displayed video on the basis of the determination result of the processing time.

Abstract: A device for performing predetermined processing on an input signal that may have a signal amplitude of more than one bit. The input signal is obtained by subjecting one-bit serial signals to predetermined signal processing, wherein the signal amplitude of more than one bit is converted to a one-bit serial signal by accumulating the signal amplitudes that exceed one bit, delaying the accumulated signal on the basis of the input signal, and outputting the accumulated signal.

Abstract: The present invention provides a digital signal processing apparatus which can perform batch processing of mixing and gain controlling, etc., one time while the frequency characteristics of different filters are being mixed to a plurality of input signals in case of the re-quantization only once.

Abstract: A signal processing apparatus includes a first band-dividing unit that divides a first-channel sound signal of two-channel sound signals into signals of a plurality of frequency bands; a second band-dividing unit that divides a second-channel sound signal of the two-channel sound signals into signals of a plurality of frequency bands; a plurality of main-component extracting units that each receive, from among the signals of the plurality of frequency bands output from the first band-dividing unit and the signals of the plurality of frequency bands output from the second band-dividing unit, signals of the same frequency band, each of the plurality of main-component extracting units being provided in association with a corresponding frequency band; and a synthesizing unit that synthesizes a plurality of outputs acquired from the plurality of main-component extracting units to generate a main signal.

Abstract: The present invention aims to realize linking of 1-bit signals having respective sampling frequencies that are different from each other and show a relationship of one equal to integer times of the other without noises.

Abstract: Audio signal processing apparatus is disclosed. The audio signal processing apparatus includes a first audio signal extracting section, a second audio signal extracting section, a sense-of-depth controlling section, a sense-of-sound-expansion controlling section, a control signal generating section, and a mixing section. The first audio signal extracting section extracts a main audio signal. The second audio signal extracting section extracts a sub audio signal. The sense-of-depth controlling section processes the extracted main audio signal to control a sense of depth. The sense-of-sound-expansion controlling section processes the extracted sub audio signal to vary a sense of sound expansion. The control signal generating section generates a first control signal with which the sense-of-depth controlling section is controlled and a second control signal with which the sense-of-sound-expansion controlling section is controlled.

Abstract: A driving device has a magnetostrictive actuator that drives a load member based on a driving signal, a sensor that detects an action of the load member, and a compensation unit that performs feedback compensation on the driving signal which the magnetostrictive actuator receives, based on a detection signal that is received from the sensor.