US 8,712,565 B2Granted

Data output apparatus and data output method

AssigneeSony Corporation

InventorFumitoshi Ishida

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Abstract

A data output apparatus is provided. The data output apparatus includes a playback unit and an audio processing unit. The playback unit may carry out playback of data at 2× speed from a tape-shaped recording medium, on which has been recorded video data with a field frequency of 59.94 Hz and audio data with a sampling frequency of 48 kHz, by playing back video data in odd-numbered fields and audio data corresponding thereto and video data in even-numbered fields and audio data corresponding thereto in parallel. The audio processing unit may write the audio data corresponding to the odd-numbered fields and the audio data corresponding to the even-numbered fields played back in parallel in the playback unit into a memory, read out the audio data from the memory at 96 kHz in order of the corresponding fields, and output the audio data to dual-link HD-SDI transmitters.

Claims12

Dependent claims

A data processing apparatus for processing a signal provided at a first rate, the signal comprising fields of video data and samples of audio data, the fields of video data corresponding to respective sets of the samples of audio data, the sets of samples of audio data being played back in an order of the corresponding fields, the data processing apparatus comprising:

two or more signal processing units, including:
a first signal processing unit configured to:
obtain a first sequence comprising first and second of the sets of samples of audio data corresponding to first and second of the fields of video data, respectively, and process the first and second sets of samples of audio data at a second rate to produce first and second sets of processed audio samples;
and
a second signal processing unit configured to:
obtain a second sequence comprising a third of the sets of samples of audio data corresponding to a third of the fields of video data, and process the third set of audio samples at the second rate to produce a third set of processed audio samples;
and
an audio processing unit configured to:
arrange the first, second, and third sets of processed audio samples in a third sequence in which the third set of processed audio samples is located between the first and second sets of processed audio samples, and
transmit the first, second, and third sets of processed audio samples at the first rate and in the order of the corresponding fields of video data.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/454,580Filed 24 Apr 2012 · continuation
Priority: JP 2007-2636209 Oct 2007
Published: US 2012/0207453 A116 Aug 2012
Granted: 29 Apr 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G11B 27/107
Programmed access in sequence to addressed parts of tracks of operating record carriers: of operating tapes
G11B 27/032
Electronic editing of digitised analogue information signals, e.g. audio or video signals: on tapes
H04N 9/8063
With processing of the sound signal: using time division multiplex of the PCM audio and PCM video signals
G11B 2220/91
Tape-like record carriers: helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte

Family

Application12/237,642Parent of this continuation · filed 25 Sep 2008
US 2012/0207453 A1Pre-grant publication · published 16 Aug 2012
US 8,204,616 B2Parent of this continuation
US 2009/0093895 A1Published application
US 8,712,565 B2This patent

From the US filing history. Foreign family members aren’t listed.