US 6,148,136 A · Recording apparatus, reproducing apparatus, and conversion apparatus

Abstract

Among the recording/reproducing apparatus such as digital VCR, recording/reproducing and converting may be conducted using digital interface even if there are difference in the type of audio sampling and video compression. DV bus data is provided at digital I/F circuit 2, and A/V separator 101 separates the data into audio and video. The separated audio data undergoes the de-interleave processing at de-interleave instrument 102, and the rate conversion at rate converter 103. The rate- converted audio data undergoes the frame sequence processing and interleave processing at interleave instrument 104. While, the video data is delayed at delay memory 105, where the delay in the audio data processing is taken into account. These audio data and video data are multiplexed at A/V multiplexer 106 to output the DV bus data 3, which is recorded after having been applied with due processing for recording.

Claims22

Dependent claims

An apparatus for processing a first digital signal having a first format comprising:

an interface for receiving the first digital signal having the first format and converting the first digital signal into a second digital signal having a second format;
a separator for separating the second digital signal into a first data signal and a second data signal;
a first data converter for de-interleaving the first data signal and outputting a first de-interleaved data signal having a first frequency;
a rate converter for converting the first de-interleaved data signal having the first frequency into a second de-interleaved data signal having a second frequency;
and
a second data converter for interleaving the second de-interleaved data signal having the second frequency.

3 more elements

An apparatus for processing a first digital signal having a first format comprising:

an interface for receiving the first digital signal having the first format and converting the first digital signal into a second digital signal having a second format;
a separator for separating the second digital signal into an interleaved data signal and a first encoded data signal;
data de-interleaving means for de-interleaving the interleaved data signal and outputting a first de-interleaved data signal having a first sampling format;
a rate converter for converting the first de-interleaved data signal having the first sampling format into a second de-interleaved data signal having a second sampling format;
a data converter for interleaving the second de-interleaved data signal;
a mode detector for detecting a data mode of the first encoded data signal;
a decoder for decoding the first encoded data signal and outputting a first decoded data signal having a third sampling format;
a sampling converter for converting the first decoded data signal having the third sampling format into a second decoded data signal having a fourth sampling format;
an encoder for encoding the second decoded data signal and outputting a second encoded data signal;
delay means for delaying the first encoded data signal and outputting a delayed data signal;
and
a selector for selectively outputting one of the second encoded data signal and the delayed data signal based on the data mode of the first encoded data signal detected by the mode detector.

9 more elements

An apparatus for processing a first digital signal having a first format comprising:

an interface for receiving the first digital signal having the first format and converting the first digital signal into a second digital signal having a second format;
a separator for separating the second digital signal into a first interleaved data signal and a first encoded data signal;
a mode detector for detecting a first data mode of the first encoded data signal and a second data mode of the first interleaved data signal;
data de-interleaving means for de-interleaving the first interleaved data signal and outputting a first de-interleaved data signal having a first sampling format;
a rate converter for converting the first de-interleaved data signal having the first sampling format into a second de-interleaved data signal having a second sampling format;
a data converter for interleaving the second de-interleaved data signal and outputting a second interleaved data signal;
delay means for delaying the first encoded data signal and outputting a first delayed data signal and for delaying the first interleaved data signal and outputting a second delayed data signal;
a first selector for selectively outputting one of the second interleaved data signal and the second delayed data signal based on the second data mode;
a decoder for decoding the first encoded data signal and outputting a first decoded data signal having a third sampling format;
a sampling converter for converting the first decoded data signal having the third sampling format into a second decoded data signal having a fourth sampling format;
an encoder for encoding the second decoded data signal and outputting a second encoded data signal;
and
a second selector for selectively outputting one of the second encoded data signal and the first delayed data signal based on the first data mode.

10 more elements

An apparatus for processing a digital signal comprising:

a separator for separating the first digital signal into a first data signal and a second data signal;
a mode detector for detecting a first data mode of the first data signal and a second data mode of the second data signal;
data de-interleaving means for de-interleaving the second data signal and outputting a first de-interleaved data signal having a first sampling format;
a rate converter for converting the first de-interleaved data signal having the first sampling format into a second de-interleaved data signal having a second sampling format;
a data converter for interleaving the second de-interleaved data signal and outputting an interleaved data signal;
delay means for delaying the first data signal and outputting a first delayed data signal and for delaying the second data signal and outputting a second delayed data signal;
a first selector for selectively outputting one of the interleaved data signal and the second delayed data signal based on the second data mode;
a decoder for decoding the first data signal and outputting a first decoded data signal having a third sampling format;
a sampling converter for converting the first decoded data signal having the third sampling format into a second decoded data signal having a fourth sampling format;
an encoder for encoding the second decoded data signal and outputting an encoded data signal;
and
a second selector for selectively outputting one of the second encoded data signal and the first delayed data signal based on the first data mode.

9 more elements

Dependencies are inferred from the claim text.

Recording apparatus, reproducing apparatus, and conversion apparatus

Life of this patent

Recording apparatus, reproducing apparatus, and conversion apparatus

Life of this patent

Abstract

Claims22