Sony Corporation

Toru Eto

Kazuo Kamiyama

Shinichi Morishima

Junichi Onodera

Masakazu Murata

Makoto Tabuchi

Tadao Fujita

Yoshiharu Yamashita

A data recording and/or reproducing apparatus having actuating buttons or adjustment volumes which enable a wide variety of processing operations despite a limited operating space, and which is able to display levels of plural audio data or to display various other data on a limited display area without detracting from viewability. To this end, the apparatus recording and/or reproducing includes a unit for recording and/or reproducing data for a non-linear accessible recording medium, at least one input port and at least one output port. The input port and the output port time-divisionally access the recording and/or reproducing unit to process the data inputted to the input port to output the processed data to the recording and/or reproducing a unit. The data reproduced from the recording and/or reproducing unit is processed by and outputted from the output port. The apparatus also includes a port actuation button for selecting the input and output ports, an actuation selection button for selecting recording or playback for the input port or the output port as selected by the port actuation button, and a controller for performing control so that the recording operation or the playback operation as selected by the actuation selection button will be executed by the input port or the output port as selected by the port actuation button.

Recording and/or reproducing apparatus for detecting and displaying audio signal levels of input and output and ports

A data recording and/or reproducing apparatus includes a unit for recording and/or reproducing data for a non-linear accessible recording medium, at least one input port and at least one output port. The input port and the output port time-divisionally access the recording and/or reproducing unit to process the data inputted to the input port to output the processed data to the recording and/or reproducing a unit. The data reproduced from the recording and/or reproducing unit is processed by and outputted from the output port. The apparatus also includes a port actuation button for selecting the input and output ports, an actuation selection button for selecting recording or playback for the input port or the output port as selected by the port actuation button, and a controller for performing control so that the recording operation or the playback operation as selected by the actuation selection button will be executed by the input port or the output port as selected by the port actuation button.

DATA RECORDING AND/OR REPRODUCING APPARATUS, ADJUSTMENT VOLUME IN DATA RECORDING AND/OR REPRODUCING APPARATUS, PORT OPERATING METHOD IN DATA RECORDING AND/OR REPRODUCING APPARATUS AND SELECTIVE INDICATING METHOD FOR ADJUSTMENT VOLUME IN DATA RECORDING AND/OR REPRODUCING

In an image encoder and an image decoder of an image transmission system, enabling the deterioration of decoded images in image quality to be avoided, the color frame information D,in separating a predetermined video signal into a luminance component and a color component (chroma component) is extracted prior to the compressive encoding processing of a video signal S,, added after the compressive encoding processing and delivered to transmission means,A, and moreover the color frame information is extracted prior to the decoding processing of the compressed video signal S,obtained from the transmission means,A and is added after the decoding processing, thereby enabling data on color frame information D,to be added to the decoded video signal S,after the decoding processing as they remain invariant free from deformation (loss) and delivered to the transmission means. Thus, a playback video signal (composite video signal) S,can be obtained using the color frame information in the decoded video signal S,and therefore the deterioration of playback images can be prevented.

Image encoder and image decoder

Editing apparatus, editing method and decoding apparatus for compressed

In a video data decoding apparatus, only video information of decoding unit containing video data decoded by use of video data different from video data used to decode video data upon encoding is eliminated, and only correct video data can be outputted. Thus, when a picture is displayed in the reverse direction, the change of such picture in the reverse direction can be made smooth considerably. A motion decoder comprises decoding means (102), (103) for decoding video data of GOP, a rearrangement means (101) for rearranging GOP data, a selecting means (104) for selecting outputs from the decoding means (102), (103), a memory means (105) for storing an output from the selecting means (104), and a selecting means (107) for inhibiting the selecting means (104) from selecting GOP containing video data decoded by use of video data different from video data used upon encoding when the order in which video data of GOP are inputted is opposite to the order in which the video data of GOP are encoded upon encoding.

Video data encoder and decoder

Video signal editing apparatus

A Y/C separating filter apparatus for outputting a carrier chrominance signal and a luminance signal from a color video signal supplied thereto comprises first and second three-dimensional filters for subtracting the color video signal and signals of one or two- frame period-advanced or delayed signals from each other to obtain first and second carrier chrominance signals, a selector circuit for selecting the first and second carrier chrominance signals and an average third carrier chrominance signal to obtain the carrier chrominance signal, and a judging circuit for judging first and second correlations between the color video signal and first or second frame period-advanced or delayed signals, wherein the selector circuit is selected in response to a judged result of the judging circuit, the selector circuit selects the first carrier chrominance signal when the first correlation is higher than the second correlation, the selector circuit selects the second carrier chrominance signal when the second correlation is higher than the first correlation, and the selector circuit selects the third carrier chrominance signal when the first and second correlations are substantially equal to each other.

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Kanagawa, Japan

Toru Eto