Abstract: According to one embodiment, a preset amount of padding data is added while a block number corresponding to a detecting period of sync information which becomes shorter is used as a packing unit when the detecting period of the sync information becomes shorter than an original period, and a block number corresponding to a detecting period of the sync information which becomes longer is divided while an original number of blocks contained in one packing unit is set as an upper limit and a preset amount of padding data is added with each divided block number used as a packing unit when the detecting period of the sync information becomes longer than the original period.

Abstract: According to one embodiment, a sound playback apparatus includes receiving mechanism for obtaining a sound packet including sound data about outputs of a predetermined number of channels, downmix information receiving mechanism for obtaining downmix coefficient information, control mechanism for determining whether downmix processing is to be performed for the sound packet by using the downmix coefficient information or not, sound processing mechanism for performing downmix processing of the sound packet based on the downmix coefficient information when the control mechanism determines to perform downmix processing for the sound packet, and sound output mechanism for outputting the sound data downmixed by the sound processing mechanism to a speaker connection terminal.

Abstract: According to an embodiment, a compressed data transfer apparatus includes: a data size calculation unit that calculates a data size to be transferred to a decoding apparatus for a time period corresponding to a difference between a first decoding delay time for which a last decode unit data in a first compressed data resides in the decoding apparatus and a second decoding delay time for which a first decode unit data in a second compressed data successive to the first compressed data resides in the decoding apparatus when transferring the second compressed data successively to the first compressed data to the decoding apparatus; and a data size adjustment unit that adjusts a data size of the last decode unit data in the first compressed data to be matched with the data size calculated by the data size calculation unit.

Abstract: According to one embodiment, there is provided a sound mixing processing apparatus including: an input unit inputting N-channel (N?3) sound data and two-channel sound data; a mixing unit mixing the N-channel sound data and the two-channel sound data inputted from the input unit to output N-channel sound data produced by the mixing; and a down-mix processing unit obtaining two-channel sound data produced by down-mixing and gain-adjusted, from the N-channel sound data inputted from the mixing unit, to output the obtained sound data.

Abstract: According to one embodiment, when transferring compressed data having information indicating decoding starting time and frame size attached thereto for each frame which is a decoding unit to a decoding processing section, a compressed data transfer apparatus calculates data size which can be transferred to the decoding processing section within time corresponding to a difference between decoding starting time attached to a specified frame and decoding starting time attached to a frame following the specified frame according to the difference between the decoding starting times, performs the control operation to set frame size of the specified frame equal to the calculated data size and rewrites information indicating frame size attached to the specified frame according to data size when the data size is changed.

Abstract: According to one embodiment, video image and audio signals are transmitted to a plurality of electronic devices each having at least one of a video image display function and an audio reproducing function. Information indicating the fact that at least one of a video image and audio has been set in a mute state is acquired from each of the electronic devices. Based on the information, a processing operation is applied to the video image and audio signals supplied to each of the electronic devices.

Abstract: According to one embodiment, a playback apparatus includes first to third digital signal processors. The first digital signal processor includes decode functions corresponding to a plurality of kinds of compression-decoding schemes and decodes first audio data, which is compression-encoded by using an arbitrary one of the plurality of kinds of compression-encoding schemes, thereby generating a first digital audio signal. The second digital signal processor includes decode functions corresponding to the plurality of kinds of compression-decoding schemes and decodes second audio data, which is compression-encoded by using an arbitrary one of the plurality of kinds of compression-encoding schemes, thereby generating a second digital audio signal. The third digital signal processor executes a mixing process of mixing the first digital audio signal and the second digital audio signal, thereby generating a digital audio output signal.

Abstract: According to one embodiment, an audio mixing device comprising an input part in which a plurality of audio data is input, a conversion part which converts the sampling frequency of all input audio data, a control part which controls such that the sampling frequency of the input audio data is converted into the preset reference sampling frequency for each conversion part, and a mixing part which mixes all audio data output from the conversion part by converting the sampling frequency into the reference sampling frequency, is provided.

Abstract: According to one embodiment, descriptors with respective identifiers are created for a video stream and time information including its transfer start time, and the descriptors, time information, and video stream are recorded in a storage unit. In the case where a descriptor that indicates time information is read when the descriptors are successively read from the storage unit and the video stream is transferred from the storage unit to a transfer subject, transfer of the video stream is controlled on the basis of the time information.

Abstract: An audio mixing processing apparatus includes input units configured to receive a plurality of audio data, a mixing unit configured to mix the plurality of inputted audio data based on predetermined mixing factors, respectively, an encoding unit configured to encode the mixed audio data, and an output unit configured to output an encoded form of the mixed audio data to the outside.

Abstract: According to one embodiment, a method is described for relaying streaming data from a first external device and to transmit streaming data to a second external device. The method comprises (i) receiving a first delay time to be needed by the second external device from the second external device, (ii) calculating a third delay time by adding the first delay time to a second delay time to be needed in the information processing device, and (iii) transmitting the third delay time to the first external device.

Abstract: When it is detected that the amounts of first and second signals processable by first and second signal processing units respectively have been accumulated in first and second input buffers, a control unit requests the first and second signal processing units to start the reproducing processing, and on the basis of time information included in the first signals, the control unit requests a multiplexing processing unit to start the multiplexing processing of the first and second signals after the reproducing processing in the first and second signal processing units.

Abstract: A signal output apparatus includes a processing unit configured to generate selected one of a video signal and an audio signal and output the signal in a plurality of output forms, a plurality of output units configured to output each of the signals generated by the processing unit, a setting unit configured to set a receiver connected to each of the plurality of output units, and a control unit configured to output the output signal of the processing unit from each of the plurality of output units in an output form corresponding to the receiver set by the setting unit.

Abstract: A switching control circuit monitors the results of decision by illegality decision circuit for the presence of an illegally copied content or contents. In the absence of an illegally copied content, the switching control circuit turns on switches to allow the transmission of contents on all of transmission lines to a multiplexing circuit. When an illegally copied content is detected by at least one of the illegality decision circuits, all the switches are turned off, interrupting the transmission of contents on all the lines to the multiplexing circuit. Thus, an illegally copied content is detected and interrupted prior to multiplexing, preventing a multiplexed signal from containing any illegally copied content.

Abstract: A relay device employs a control system which notifies control data indicating its own specification to transmitting equipment to receive data in a form matching to its own specification and acquires control data D13 from receiving equipment employing the control system and connected to a latter stage. The relay device determines whether its own specification is in a higher order or not in comparison a specification indicated by the control data D13 with its own specification, and if it is determined that its own specification is in the higher order, rewrites the control data D13 from the receiving equipment by its own control data D12 to notify it to the transmitting equipment. Thereby, the relay device can reproduce the data from the transmitting equipment in accordance with its own specification. At this time, since the relay device converts the received data from the transmitting equipment to transmit it, even the receiving equipment can reproduce it in accordance with an appropriate specification.

Abstract: In one embodiment, as an example, N/M (=3.33333 . . . ) dividing is performed assuming M=3, N=10. That is, the frequency of the input signal CK is converted to the frequency of 1/3.33333 . . . times. Here, it is assumed that the frequency dividing number is 3.33333 . . . In this case, 3(=n) dividing is combined with 4(=n+1) dividing to perform the dividing, and accordingly a signal of a desired frequency can be obtained. In response to the output DOUT of the frequency divider, an n dividing counter counts the number of performed n-dividing operations and an n+1 dividing counter counts the number of performed n+1-dividing operations. An adder outputs the frequency dividing number (n) or (n+1). A frequency divider uses the frequency dividing numbers to divide an arbitrary frequency signal CK.

Abstract: In one embodiment, as an example, N/M (=3.33333 . . . ) dividing is performed assuming M=3, N=10. That is, the frequency of the input signal CK is converted to the frequency of 1/3.33333 . . . times. Here, it is assumed that the frequency dividing number is 3.33333 . . . . In this case, 3(=n) dividing is combined with 4(=n+1) dividing to perform the dividing, and accordingly a signal of a desired frequency can be obtained. In response to the output DOUT of the frequency divider, an n dividing counter counts the number of performed n-dividing operations and an n+1 dividing counter counts the number of performed n+1-dividing operations. An adder outputs the frequency dividing number (n) or (n+1). A frequency divider uses the frequency dividing numbers to divide an arbitrary frequency signal CK.

Abstract: An oscillation frequency of a VCXO is controlled based on a phase difference between a reference phase signal outputted from a reference phase generation circuit and a feedback phase signal outputted from a feedback phase generation circuit, an oscillation frequency of a VCO is controlled based on a phase difference between an output clock of the VCXO and an audio clock obtained from a divider circuit, and a clock outputted from the VCO is determined as a restored audio clock.

Abstract: An oscillation frequency of a VCXO is controlled based on a phase difference between a reference phase signal outputted from a reference phase generation circuit and a feedback phase signal outputted from a feedback phase generation circuit, an oscillation frequency of a VCO is controlled based on a phase difference between an output clock of the VCXO and an audio clock obtained from a divider circuit, and a clock outputted from the VCO is determined as a restored audio clock.