Patent EP0202948A2 successfully refreshed from Google Patents.
EP0202948A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Recording system and apparatus
Assignee: Canon Inc
•
Filing: 1986-05-22
•
Granted: —
•
Expires: 2006-05-22
Abstract
Abstract An information recording system and apparatus which records on a recording medium an audio signal, which is time-base compressed at a predetermined compression ratio, together with a date signal indicative of the compression ratio. The start signal indicative of the start of the audio signal, the data signal, the audio signal and the end signal indicative of the end of the audio signal are recorded in this order. A recording medium recorded by such system and apparatus is disclosed. A reproduction is also disclose which reproduces the information out of such recording medium.
Inventors
- 👤 Tsuguhide Sakata
- 👤 Norio Kimura
- 👤 Takei Masahiro
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 18:35
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/12; G11B20/00007; G11B20/10527
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
59 words
An information recording apparatus comprising: a) means for supplying a start signal, a data signal, an information signal and an end signal indicative of the end of said information signal; and b) means for writing into a medium said start signal, said data signal, said information signal and said end signal, supplied by said supplying means in this order.
Claim 2
Dependent Claim
59 words
An information recording apparatus comprising: a) means for supplying a start signal, a data signal, an information signal and an end signal indicative of the end of said information signal; and b) means for writing into a medium said start signal, said data signal, said information signal and said end signal, supplied by said supplying means in this order.
Claim 3
Dependent Claim
16 words
An information recording apparatus according to claim 1, wherein said information signal is an audio signal.
Claim 4
Dependent Claim
21 words
An information recording apparatus according to claim 2, wherein said audio signal is a signal which is compressed in time base.
Claim 5
Dependent Claim
43 words
An information recording apparatus according to claim 3, wherein said supplying means includes: a) means for producing a pair of said start signal and said data signal; and b) means for combining said information signal with said data signal and said data signal.
Claim 6
Dependent Claim
39 words
An information recording apparatus according to claim 1, wherein said writing means includes means for modulating said start signal, said data signal, said information signal and said end signal and writing these signals in this order on a medium.
Claim 7
Dependent Claim
21 words
An information recording apparatus according to claim 3, wherein said data signal represents the time-base compression ratio for said audio signal.
Claim 8
Independent Claim
74 words
An apparatus for recording an information signal, comprising: a) means for producing a pair of a start signal and an end signal to sandwich the information signal therebetween; b) means for providing a data signal related to said information signal; c) means for combining said start signal, said data signal, said information signal, and said end signal in the named order; and d) means for recording the combined signal produced form said combining means.
Claim 9
Independent Claim
74 words
An apparatus for recording an information signal, comprising: a) means for producing a pair of a start signal and an end signal to sandwich the information signal therebetween; b) means for providing a data signal related to said information signal; c) means for combining said start signal, said data signal, said information signal, and said end signal in the named order; and d) means for recording the combined signal produced form said combining means.
Claim 10
Dependent Claim
14 words
An apparatus according to claim 7, wherein said information signal is an audio signal.
Claim 11
Dependent Claim
18 words
An apparatus according to claim 8, wherein said information signal is an audio signal compressed in time base.
Claim 12
Dependent Claim
24 words
An apparatus according to claim 9, wherein said data signal is a signal indicative of the time base compression ratio for said audio signal.
Claim 13
Dependent Claim
28 words
An apparatus according to claim 7, wherein said recording means includes means for modulating said pair of a start signal and an end signal, and said information signal.
Claim 14
Dependent Claim
70 words
An apparatus according to claim 7, wherein said combining means includes: a) memory means for storing said information signal at a predetermined part of said memory means; b) control means for storing said pair of a start signal and an end signal, one in each of the parts of said memory means adjacent to both sides of said predetermined part of said memory means where said information signal is stored.
Claim 15
Dependent Claim
32 words
An apparatus according to claim 12, wherein said recording means includes: means for reading said start signal out of said memory part of said memory means where said start signal is stored.
Claim 16
Dependent Claim
91 words
An information recording method for recording on a medium an audio signal compressed in time base at a predetermined compression ratio, and a data signal indicative of the compression ratio, said method comprising the steps of: a) a first step of recording on said medium a start signal indicative of the start of said audio signal; b) a second step of recording said data signal on said medium subsequent to said first step; and c) a third step of recording said audio signal on said medium subsequent to said second step.
Claim 17
Dependent Claim
91 words
An information recording method for recording on a medium an audio signal compressed in time base at a predetermined compression ratio, and a data signal indicative of the compression ratio, said method comprising the steps of: a) a first step of recording on said medium a start signal indicative of the start of said audio signal; b) a second step of recording said data signal on said medium subsequent to said first step; and c) a third step of recording said audio signal on said medium subsequent to said second step.
Claim 18
Dependent Claim
27 words
An information recording method according to claim 14, further including: d) a fourth step of recording an end signal indicative of the end of said audio signal.
Claim 19
Dependent Claim
19 words
An information recording method according to claim 14, wherein said first and second steps include FM modulation and recording.
Claim 20
Dependent Claim
15 words
An information recording method according to claim 14, wherein said medium is of a disc-type.
Claim 21
Dependent Claim
16 words
An information recording method according to claim 14, wherein said medium includes a magnetic recording medium.
Claim 22
Independent Claim
68 words
A method of recording an information signal, comprising the steps of: a) producing a pair of a start signal and an end signal to sandwich said information signal therebetween; b) producing a data signal related to said information signal; c) combining said start signal, said data signal, said information and the end signal in the named order; and d) recording the combined signal obtained through the combining step.
Claim 23
Independent Claim
68 words
A method of recording an information signal, comprising the steps of: a) producing a pair of a start signal and an end signal to sandwich said information signal therebetween; b) producing a data signal related to said information signal; c) combining said start signal, said data signal, said information and the end signal in the named order; and d) recording the combined signal obtained through the combining step.
Claim 24
Dependent Claim
14 words
A method according to claim 19, wherein said information signal is an audio signal.
Claim 25
Dependent Claim
18 words
A method according to claim 20, wherein said audio signal is an audio signal compressed in time base.
Claim 26
Dependent Claim
24 words
A method according to claim 21, wherein said data signal is a signal indicative of the time base compression ratio for said audio signal.
Claim 27
Dependent Claim
25 words
A method according to claim 19, wherein said pair of a start signal and an end signal is indicative of the status of said information.
Claim 28
Dependent Claim
83 words
An information recording method for recording on a medium an information signal together with a data signal related to the information signal, comprising the steps of: a) a first step of recording on said medium a start signal indicative of the start of said information signal on said medium; b) a second step of recording said data signal on said medium subsequent to said first step; and c) a third step of recording said information on said medium subsequent to said second step.
Claim 29
Dependent Claim
83 words
An information recording method for recording on a medium an information signal together with a data signal related to the information signal, comprising the steps of: a) a first step of recording on said medium a start signal indicative of the start of said information signal on said medium; b) a second step of recording said data signal on said medium subsequent to said first step; and c) a third step of recording said information on said medium subsequent to said second step.
Claim 30
Dependent Claim
35 words
An information recording method according to claim 24, further comprising: d) a fourth step of recording on said medium an end signal indicative of the end of said information signal subsequent to said third step.
Claim 31
Dependent Claim
16 words
An information recording method according to claim 24, wherein said information signal is an audio signal.
Claim 32
Dependent Claim
25 words
An information recording method according to claim 26, wherein said information signal includes an audio signal compressed in time base at a predetermined compression ratio.
Claim 33
Dependent Claim
20 words
An information recording method according to claim 27, wherein said data signal is a signal indicative of said compression ratio.
Claim 34
Dependent Claim
16 words
An information recording method according to claim 24, wherein said medium is a disk-like recording medium.
Claim 35
Dependent Claim
16 words
An information recording method according to claim 24, wherein said medium includes a magnetic recording medium.
Claim 36
Dependent Claim
94 words
A reproduction apparatus for reproducing an audio signal out of a medium in which a start signal indicative of the start of said audio signal compressed in time base at a predetermined ratio, a data signal indicative of said compression ratio, said audio signal and an end signal indicative of the end of said audio signal are recorded in this order, comprising: a) means for detecting the position on said medium where said start signal is recorded; and b) means for reading said data signal out of the detection result by said detecting means.
Claim 37
Dependent Claim
94 words
A reproduction apparatus for reproducing an audio signal out of a medium in which a start signal indicative of the start of said audio signal compressed in time base at a predetermined ratio, a data signal indicative of said compression ratio, said audio signal and an end signal indicative of the end of said audio signal are recorded in this order, comprising: a) means for detecting the position on said medium where said start signal is recorded; and b) means for reading said data signal out of the detection result by said detecting means.
Claim 38
Dependent Claim
24 words
A reproduction apparatus according to claim 31, wherein said detecting means includes means for detecting the position where said start signal rises or falls.
Claim 39
Dependent Claim
32 words
A reproduction apparatus according to claim 32, wherein said reading means includes means for detecting and reading said data signal in accordance with the position where said start signal rises or falls.
Claim 40
Dependent Claim
33 words
A reproduction apparatus according to claim 33, further comprising: means for expanding in time base said audio signal, compressed in time base, in accordance with the data signal read by said reading means.
Claim 41
Dependent Claim
49 words
A recording medium on which an audio signal compressed in time base at a predetermined compression ratio is recorded in a block indicated by a start signal and an end signal, wherein a signal indicative of said compression ratio is recorded between said start signal and said audio signal.
Claim 42
Dependent Claim
49 words
A recording medium on which an audio signal compressed in time base at a predetermined compression ratio is recorded in a block indicated by a start signal and an end signal, wherein a signal indicative of said compression ratio is recorded between said start signal and said audio signal.
Claim 43
Dependent Claim
15 words
A recording medium according to claim 35, wherein said recording medium includes a disk-like medium.
Claim 44
Dependent Claim
15 words
A recording medium according to claim 35, wherein said medium includes a magnetic recording medium.
Claim 45
Dependent Claim
26 words
A recording medium according to claim 36, wherein said disk-like recording medium inlcudes a plurality of concentric tracks formed thereon, each track including four said blocks.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.