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EP0101301A1
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Apparatus and methods for multi-channel signal recording
Assignee: OXFORD MEDICAL SYSTEMS Ltd
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Filing: 1983-08-11
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Granted: —
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Expires: 2003-08-11
Abstract
Abstract A multi-channel signal recorder e.g. a multi-track tape recorder records a greater number of channels than number of tracks available on the recorder. This is achieved by inputting the channels to individual buffer stores in a data memory (4) and then transferring in cyclic sequence the contents of a number of buffer stores recorded over preset periods of time as blocks of signal to a common record track at rates which are faster than the input rate by a number of times at least equal to the number of buffer stores feeding a track. Marker signals may be inserted between successive blocks.
Inventors
- 👤 David Arthur Morris
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 23:13
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/02; G11B20/10; G11B20/16; G11B20/22; G11B20/225; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/32; G11B27/322; G11B27/323; G11B20/10527; G11B2020/10537; G11B2020/10592; G11B2220/00; G11B2220/90
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A multi-channel signal recorder comprising a plurality of buffer stores, means for applying input signals from each individual channel to be recorded to respective buffer stores, a record medium having a lesser number of record tracks than channels to be recorded, and means for transferring the contents of more than one buffer store recorded over preset periods of time in cyclic sequence to a common record track as a series of blocks of signals.
Claim 2
Dependent Claim
74 words
A multi-channel signal recorder comprising a plurality of buffer stores, means for applying input signals from each individual channel to be recorded to respective buffer stores, a record medium having a lesser number of record tracks than channels to be recorded, and means for transferring the contents of more than one buffer store recorded over preset periods of time in cyclic sequence to a common record track as a series of blocks of signals.
Claim 3
Dependent Claim
21 words
A recorder as claimed in Claim 1 in which means are provided . for recording marker signals between blocks of signal.
Claim 4
Dependent Claim
60 words
The recorder as claimed in either one of the preceding claims in which the said means for transferring operates to transfer signals from the buffer store to a record track at a faster rate than the rate of input to the buffer stores by a number of times at least equal to the number of buffer stores feeding the track.
Claim 5
Dependent Claim
46 words
The recorder as claimed in any one of the preceding claims in which an additional track is provided together with means for recording a timing signal in the additional track so that on playback any transient differences between recording on playback speed can be compensated for.
Claim 6
Dependent Claim
35 words
The recorder as claimed in any one of the preceding claims in which a plurality of record tracks is provided each arranged to carry a corresponding number of blocks of signal in each cyclic sequence.
Claim 7
Dependent Claim
19 words
The recorder as claimed in any one of the preceding claims in which the record medium is magnetic tape.
Claim 8
Independent Claim
82 words
A method of recording a plurality of simultaneously generated signals comprising the steps of inputting each signal in parallel to its individual buffer store and transferring the contents of a plurality of buffer stores in cyclic sequence to a common record track as a series of blocks of signal, the said transferring step taking place at a faster rate than the rate of inputting by a number of times at least equal to the number of signals being recorded on a track.
Claim 9
Independent Claim
82 words
A method of recording a plurality of simultaneously generated signals comprising the steps of inputting each signal in parallel to its individual buffer store and transferring the contents of a plurality of buffer stores in cyclic sequence to a common record track as a series of blocks of signal, the said transferring step taking place at a faster rate than the rate of inputting by a number of times at least equal to the number of signals being recorded on a track.
Claim 10
Dependent Claim
17 words
The method as claimed in Claim 7 in which marker signals are recorded between blocks of signals.
References Cited (Backward Citations)
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