# US 6,289,171 B1 · Arrangement for recording or reproducing a digital video signal and a corresponding digital audio signal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,289,171 B1 - Document ID: US6289171B1 - Status: Granted - Kind: B1 - Application number: 08/385,511 - Filed: 1995-02-08 - Granted: 2001-09-11 - Earliest claimed: 1994-02-10 - Assignees: U. S. Philips Corporation - Inventors: Wilhelmus J. Van Gestel - Web page: https://patentgrep.com/patent/US6289171B1 ## CPC - H04N 5/9267: {using time division multiplex of the PCM audio and PCM video signals} - G11B 20/10527: {Audio or video recording; Data buffering arrangements (G11B20/12 - G11B20/18 take precedence)} - G11B 20/1208: {for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data} - G11B 27/036: Insert-editing - G11B 27/3027: {used signal is digitally coded} - G11B 27/3063: {Subcodes} - G11B 27/309: {Table of contents} - G11B 20/00007: {Time or data compression or expansion (audio compression based on psychoacoustics G10L19/00; data processing for reproducing audio data at different playback speeds G10L21/04; video compression H04N19/00; data compression per se H03M7/30)} - G11B 27/032: on tapes (G11B27/036, G11B27/038 take precedence) - G11B 2220/90: Tape-like record carriers - H04N 5/78263: {for recording on tracks inclined relative to the direction of movement of the tape} - H04N 5/9206: {the additional signal being a character code signal} - H04N 5/9207: {for teletext} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) ## Abstract An arrangement for recording a digital video signal and a corresponding digital audio signal in slant tracks on a longitudinal magnetic record carrier, tracks having an audio signal recording sector and a video signal recording sector, for storing the digital audio signal and the digital video signal respectively, includes first and second input terminals (10,11) for receiving the digital audio signal and the digital video signal respectively, a conversion circuit (14,16,26) for converting the digital audio- and video signals so as to obtain a composite signal which can be recorded on the record carrier, a recording device (28,30) for the recording of the converted audio- and video signals in said composite signal in the audio signal recording sector and the video signal recording sector respectively of a track, the video signal recording sector in a track further comprising an auxiliary signal recording part for storing the digital audio signal as well. ## Claims ### Claim 1 Arrangement for recording a digital video signal and a corresponding digital audio signal in slant tracks on a longitudinal magnetic record carrier, said tracks comprising an audio signal recording sector and a video signal recording sector for storing the digital audio signal and the digital video signal, respectively, the arrangement comprising: first and second input terminals for receiving the digital audio signal and the digital video signal, respectively; conversion means for converting the digital audio signal and the digital video signal to form a composite signal for recording on the record carrier; recording means for recording the converted digital audio signal and digital video signal in said composite signal in the audio signal recording sector and the video signal recording sector, respectively, of a track, the video signal recording sector in a track further comprising an auxiliary signal recording part for storing an auxiliary signal; means for additionally storing the digital audio signal in the auxiliary signal recording parts of the video signal recording sectors in the tracks; means for generating an indicator signal indicating that the auxiliary signal recorded in the auxiliary signal recording parts of the video signal recording sectors in the tracks is an audio signal corresponding to the digital video signal recorded in the video signal recording sectors; and signal combining means for combining the indicator signal into the composite signal for recording in the tracks. ### Claim 2 (depends on 1) Arrangement as claimed in claim 1, characterized in that the conversion means further comprises means for converting the digital audio signal into a second converted digital audio signal to form the composite signal and the recording means further recording the second converted audio signal included in said composite signal in said auxiliary signal recording parts of the video signal recording sectors in the tracks. ### Claim 3 (depends on 2) Arrangement as claimed in claim 2, characterized in that the conversion means comprise data compression means for data reducing the digital audio signal to form the second converted digital audio signal. ### Claim 4 (depends on 1) Arrangement as claimed in claim 1, characterized in that, the arrangement is in the form of a camcorder. ### Claim 5 Arrangement for reproducing a digital video signal and a corresponding digital audio signal from a longitudinal magnetic record carrier, said digital video signal and said digital audio signal being recorded in slant tracks on a longitudinal magnetic record carrier, said tracks comprising an audio signal recording sector and a video signal recording sector in which a first information signal relating to the digital audio signal and a second information signal relating to the digital video signals respectively, are stored, the video signal recording sector in a track further comprising an auxiliary signal recording part for storing a third information signal representing an auxiliary signal, the arrangement comprising: reading means for reading the signals recorded in the tracks; reconversion means for reconverting the first information signal and the second information signal into a reproduced digital audio signal and a reproduced digital video signal, respectively; and first and second output terminals for supplying the reproduced digital audio signal and the reproduced digital video signal, respectively, characterized in that a third information signal which relates to the digital audio signal is stored in the auxiliary signal recording part of the video signal recording sector in a track, and the reconversion means comprises means for reconverting the third information signal into the reproduced digital audio signal, the arrangement further comprising output means for outputting the reproduced digital audio signal obtained from the reconversion of the third information signal. ### Claim 6 (depends on 5) Arrangement as claimed in claim 5, characterized in that the reconversion means comprises data expansion means for carrying out data expansion on the third information signal to form the reproduced digital audio signal from said third information signal. ### Claim 7 (depends on 6) Arrangement as claimed in claim 6, characterized in that an indicator signal. indicating that the third information signal recorded in the auxiliary signal recording parts of the video signal recording sectors in the tracks is an audio signal corresponding to the digital video signal recorded in the video signal recording sectors, is included in the information recorded in said tracks, and said arrangement further comprises retrieving means for retrieving the indicator signal from the information read from the tracks. ### Claim 8 (depends on 5) Arrangement as claimed in claim 5, characterized in that an indicator signal, indicating that the third information signal recorded in the auxiliary signal recording parts of the video signal recording sectors in the tracks is an audio signal corresponding to the digital video signal recorded in the video signal recording sectors, is included in the information recorded in said tracks, and said arrangement further comprises retrieving means for retrieving the indicator signal from the information read from the tracks. ### Claim 9 (depends on 8) Arrangement as claimed in claim 8, characterized in that the output means outputs the reproduced digital audio signal to an audio output terminal in response to the occurrence of said indicator signal. ### Claim 10 Longitudinal magnetic record carrier having slant tracks each comprising an audio signal recording sector and a video signal recording sector, each of said audio signal recording sectors having a digital audio signal stored therein and each of said video signal recording sectors having a digital signal stored therein, each of said video signal recording sectors further having an auxiliary signal recording part for storing an auxiliary signal, characterized in that said digital audio signal is additionally stored in said auxiliary signal recording parts. ### Claim 11 (depends on 10) A longitudinal magnetic record carrier as claimed in claim 10, characterized in that an indicator signal, indicating that the digital audio signal corresponding to the digital video signal recorded in the video signal recording sectors is additionally recorded in the auxiliary signal recording part, is recorded in said tracks.