Video and audio processing system, video processing apparatus, audio processing apparatus, output apparatus, and method of controlling the system

A video processing apparatus for use in a video and audio processing system comprising an output apparatus to output video data and audio data to be synchronized and reproduced and an audio processing apparatus to receive the video data and the audio data from the output apparatus, output at least the video data to a downstream apparatus, and process the audio data to generate an audio signal to be supplied to a speaker, the video processing apparatus receiving the video data output from the audio processing apparatus and generating a video signal, the video processing apparatus comprising:

• video signal processing means for generating a video signal having a predetermined quality from the video data output from the audio processing apparatus;
• control means for controlling the processing in the video signal processing means on the basis of a format of the video data output from the audio processing apparatus and/or a signal processing mode that is set;
• determining means for determining a processing time necessary to process the video data in the video signal processing means and display the video after the video data is received, if the content of the processing in the video signal processing means is changed by the control means;
• and
• output means for supplying the determined processing time to another apparatus.

An audio processing apparatus for use in a video and audio processing system comprising an output apparatus to output video data and audio data to be synchronized and reproduced and a video processing apparatus to receive the video data output from the audio processing apparatus and generate a video signal used for displaying video, the audio processing apparatus receiving the video data and the audio data from the output apparatus, outputting at least the video data to a downstream apparatus, and processing the audio data to generate an audio signal to be supplied to a speaker, the audio processing apparatus comprising:

• receiving means for receiving information concerning a processing time necessary to perform video signal processing in which the video signal having a predetermined quality is generated from the video data from the video processing apparatus if the content of the video signal processing is changed;
• input means for receiving the audio data from the output apparatus;
• delay means for delaying a time necessary to supply the audio data received by the input means to the speaker as the audio signal;
• and
• control means for controlling the delay time in the delay means on the basis of the information concerning the processing time received by the receiving means.

An output apparatus to output video data and audio data to be synchronized and reproduced, the output apparatus being included in a video and audio processing system comprising an audio processing apparatus to receive the video data and the audio data from the output apparatus, output at least the video data to a downstream apparatus, and process the audio data to generate an audio signal to be supplied to a speaker and a video processing apparatus to receive the video data output from the audio processing apparatus and generate a video signal, the output apparatus comprising:

• receiving means for receiving information concerning a processing time necessary to perform video signal processing in which the video signal having a predetermined quality is generated from the video data, the information concerning the processing time being output from the video processing apparatus if the content of the video signal processing is changed;
• output means for outputting the audio data;
• delay means for delaying the output of the audio data from the output means;
• and
• control means for controlling a delay time of the audio data in the delay means on the basis of the information concerning the processing time received by the receiving means.

A video and audio processing system comprising:

• an output apparatus to output video data and audio data to be synchronized and reproduced;
• an audio processing apparatus to receive the video data and the audio data from the output apparatus, output at least the video data to a downstream apparatus, and process the audio data to generate an audio signal to be supplied to a speaker;
• and
• a video processing apparatus to receive the video data output from the audio processing apparatus and generates a video signal,
• wherein the video processing apparatus comprises
• video signal processing means for generating the video signal having a predetermined quality from the video data output from the audio processing apparatus,
• control means for controlling the processing in the video signal processing means on the basis of a format of the video data output from the audio processing apparatus and/or a signal processing mode that is set,
• determining means for determining a processing time necessary to process the video data in the video signal processing means and display the video after the video data is received, if the content of the processing in the video signal processing means is changed by the control means, and
• indicating means for indicating the processing time determined by the determining means to the audio processing apparatus,
• wherein the audio processing apparatus comprises
• acquiring means for acquiring information concerning the processing time indicated by the video processing apparatus,
• difference calculating means for calculating a difference between the processing time indicated by the video processing apparatus and a processing time of the audio signal in the audio processing apparatus, and
• difference indicating means for indicating information concerning the difference in the processing time calculated by the difference calculating means to the output apparatus, and
• wherein the output apparatus comprises
• delay means for delaying the audio signal to be output,
• difference acquiring means for acquiring information concerning the difference in the processing time, indicated by the audio processing apparatus, and
• delay control means for controlling the delay time of the audio signal in the delay means on the basis of the information concerning the difference in the processing time acquired by the difference acquiring means.

A video and audio processing system comprising:

• an output apparatus to output video data and audio data to be synchronized and reproduced;
• an audio processing apparatus to receive the video data and the audio data from the output apparatus, output at least the video data to a downstream apparatus, and process the audio data to generate an audio signal to be supplied to a speaker;
• and
• a video processing apparatus to receive the video data output from the audio processing apparatus and generates a video signal,
• wherein the video processing apparatus comprises
• a video signal processing unit to generate the video signal having a predetermined quality from the video data output from the audio processing apparatus;
• a control unit to control the processing in the video signal processing unit on the basis of a format of the video data output from the audio processing apparatus and/or a signal processing mode that is set;
• and
• a determining unit to determine a processing time necessary to process the video data in the video signal processing unit and display the video after the video data is received, if the content of the processing in the video signal processing unit is changed by the control unit, and
• wherein 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 by the determining unit.

A video processing apparatus for use in a video and audio processing system comprising an output apparatus that outputs video data and audio data to be synchronized and reproduced and 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, the video processing apparatus receiving the video data output from the audio processing apparatus and generating a video signal, the video processing apparatus comprising:

• a video signal processing unit to generate the video signal having a predetermined quality from the video data output from the audio processing apparatus;
• a control unit to control the processing in the video signal processing unit on the basis of a format of the video data output from the audio processing apparatus and/or a signal processing mode that is set;
• a determining unit to determine a processing time necessary to process the video data in the video signal processing unit and display the video after the video data is received, if the content of the processing in the video signal processing unit is changed by the control unit;
• and
• an output unit to supply the determined processing time to another apparatus.

An audio processing apparatus for use in a video and audio processing system comprising an output apparatus to output video data and audio data to be synchronized and reproduced and a video processing apparatus to receive the video data output from the audio processing apparatus and generate a video signal, the audio processing apparatus receiving the video data and the audio data from the output apparatus, supplying at least the video data to a downstream apparatus, and processing the audio data to generate an audio signal to be supplied to a speaker, the audio processing apparatus comprising:

• a receiving unit to receive information concerning a processing time necessary to perform video signal processing in which the video signal having a predetermined quality is generated from the video data from the video processing apparatus if the content of the video signal processing is changed;
• an input unit to receive the audio data from the output apparatus;
• a delay unit to delay a time necessary to supply the audio data received by the input unit to the speaker as the audio signal;
• and
• a control unit to control the delay time in the delay unit on the basis of the information concerning the processing time received by the receiving unit.

An output apparatus to output video data and audio data to be synchronized and reproduced, the output apparatus being included in a video and audio processing system comprising an audio processing apparatus to receive the video data and the audio data from the output apparatus, output at least the video data to a downstream apparatus, and process the audio data to generate an audio signal to be supplied to a speaker and a video processing apparatus to receive the video data output from the audio processing apparatus and generate a video signal, the output apparatus comprising:

• a receiving unit to receive information concerning a processing time necessary to perform video signal processing in which the video signal having a predetermined quality is generated from the video data, the information concerning the processing time being output from the video processing apparatus if the content of the video signal processing is changed;
• an output unit to output the audio data;
• a delay unit to delay the output of the audio data from the output unit;
• and
• a control unit to control a delay time of the audio data in the delay unit on the basis of the information concerning the processing time received by the receiving unit.

A video and audio processing system comprising:

• an output apparatus to output video data and audio data to be synchronized and reproduced;
• an audio processing apparatus to receive the video data and the audio data from the output apparatus, output at least the video data to a downstream apparatus, and process the audio data to generate an audio signal to be supplied to a speaker;
• and
• a video processing apparatus-to receive the video data output from the audio processing apparatus and generate a video signal,
• wherein the video processing apparatus comprises
• a video signal processing unit to generate the video signal having a predetermined quality from the video data output from the audio processing apparatus;
• a control unit to control the processing in the video signal processing unit on the basis of a format of the video data output from the audio processing apparatus and/or a signal processing mode that is set;
• a determining unit to determine a processing time necessary to process the video data in the video signal processing unit and display the video after the video data is received, if the content of the processing in the video signal processing unit is changed by the control unit;
• and
• an indicating unit to indicate the processing time determined by the determining unit to the audio processing apparatus,
• wherein the audio processing apparatus comprises
• an acquiring unit to acquire information concerning the processing time indicated by the video processing apparatus;
• a difference calculating unit to calculate a difference between the processing time indicated by the video processing apparatus and a processing time of the audio signal in the audio processing apparatus;
• and
• a difference indicating unit to indicate information concerning the difference in the processing time calculated by the difference calculating unit to the output apparatus, and
• wherein the output apparatus comprises
• a delay unit to delay the audio signal to be output;
• a difference acquiring unit to acquire information concerning the difference in the processing time, indicated by the audio processing apparatus;
• and
• a delay control unit to control the delay time of the audio signal in the delay unit on the basis of the information concerning the difference in the processing time acquired by the difference acquiring unit.