US5903407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape recording method and apparatus
Assignee: IDC TECHNOLOGY Inc
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Filing: 1997-06-03
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Granted: 1999-05-11
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Expires: 2017-06-03
Abstract
Abstract A cassette recording system having both a primary memory and an auxiliary memory associated with the cassette. A mechanism is provided for sequentially reading information from and writing information to the primary memory as well as randomly reading information from and writing information to the auxiliary memory. The auxiliary memory may be used to retain programming information. The system enables a cassette to be transferred from one recorder to another with the recording schedule, being included in the auxiliary memory associated with the cassette, being similarly transferred.
Inventors
- 👤 Irving Tsai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:35
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/065; G11; G11B; G11B15/00; G11B15/02; G11B15/026; G11B15/04; G11B15/05; G11B15/06; G11B15/07; G11B23/00; G11B23/02; G11B23/03; G11B23/0301; G11B23/0302; G11B23/0305; G11B23/031; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08714; G11B23/30; G11B23/38; G11B23/40; G11B27/00; G11B27/005; G11B27/007; G11B27/02; G11B27/022; G11B27/024; G11B27/028; G11B27/10; G11B27/102; G11B27/107; G11B27/11; G11B27/34; G11B27/36; H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; G11B20/00; G11B20/00086; G11B2220/00; G11B2220/40; G11B2220/41; G11B2220/60; G11B2220/65; G11B2220/652; G11B2220/655; G11B2220/80; G11B2220/90; H04N5/765
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
96 words
A recording system comprising: a cassette; a primary memory associated with the cassette; an auxiliary memory user-applicable to the cassette; primary read/write means for sequentially reading information from and writing information to the primary memory; auxiliary read/write means for randomly reading information from and writing information to the auxiliary memory; means for writing write protection information in the auxiliary memory; means for reading write protection information from the auxiliary memory; and means for preventing the writing of information into the primary memory in portions of the primary memory designated as write protected in the auxiliary memory.
Claim 2
Dependent Claim
96 words
A recording system comprising: a cassette; a primary memory associated with the cassette; an auxiliary memory user-applicable to the cassette; primary read/write means for sequentially reading information from and writing information to the primary memory; auxiliary read/write means for randomly reading information from and writing information to the auxiliary memory; means for writing write protection information in the auxiliary memory; means for reading write protection information from the auxiliary memory; and means for preventing the writing of information into the primary memory in portions of the primary memory designated as write protected in the auxiliary memory.
Claim 3
Dependent Claim
38 words
A recording system as in claim 1 including means for using information contained in the auxiliary memory for positioning the primary read/write means on portions of the primary memory not designated as write protected in the auxiliary memory.
Claim 4
Dependent Claim
25 words
A system as in claim 2 including means for automatically designating information written into the primary memory as write protected when said information is written.
Claim 5
Dependent Claim
21 words
A system as in claim 2 including means for ranking the write protection level of information written into the primary memory.
Claim 6
Dependent Claim
23 words
A system as in claim 4 including means for writing a single program into two or more non-consecutive segments in the primary memory.
Claim 7
Dependent Claim
23 words
A system as in claim 2 including means for writing a single program into two or more non-consecutive segments in the primary memory.
Claim 8
Dependent Claim
25 words
A system as in claim 1 including means for automatically designating information written into the primary memory as write protected when said information is written.
Claim 9
Dependent Claim
21 words
A system as in claim 1 including means for ranking the write protection level of information written into the primary memory.
Claim 10
Dependent Claim
30 words
A system as in claim 8 including means for automatically positioning the primary read/write means on portions of the primary memory having a write protection level permitting recording to occur.
Claim 11
Dependent Claim
55 words
A system as in claim 1 including emergency override means for overriding the write protection status of information contained in the primary memory, said emergency override means including visible warning means for visibly warning that write protected information will be overwritten, and user confirmation means for receiving user confirmation for said emergency override to occur.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-10 | 2002-11-09 | 2003-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-10 | 2006-11-09 | 2007-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-10 | 2010-11-09 | 2011-05-11 | $7700.00 | Window Closed / Lapsed |