Patent US4480280A successfully refreshed from Google Patents.
US4480280A
Expired / Lapsed
US
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Rotary recording medium reproducing apparatus address search
Assignee: Victor Company of Japan Ltd
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Filing: 1982-08-02
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Granted: 1984-10-30
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Expires: 2002-08-02
Abstract
Abstract A rotary recording medium reproducing apparatus for reproducing a rotary recording medium recorded with a program information signal and different kinds of address signals having mutually different predetermined codes in correspondence with the program information signal within a program information signal recorded section. The reproducing apparatus comprises a reproducing element for reproducing recorded signals from the rotary recording medium, a moving device for moving the reproducing element along a radial direction of the rotary recording medium, an address signal detecting circuit for detecting address signals from signals reproduced by the reproducing element, and a driving voltage generating circuit set with an address signal to be searched, for generating a driving voltage in accordance with the kind of set address signal, and supplying the driving voltage thus generated to the moving device. The moving device moves the reproducing element at a speed in accordance with the kind of the address signal.
Inventors
- 👤 Hiroyuki Sugiyama
- 👤 Masaki Sakurai
- 👤 Ryozo Abe
- 👤 Kenji Yoshihara
- 👤 Susumu Sakakibara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:36
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521; G11B5/5526; G11B21/00; G11B21/02; G11B21/08; G11B21/081; G11B21/083; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3036; G11B9/00; G11B9/06; G11B2220/00; G11B2220/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A rotary recording medium reproducing apparatus for reproducing a rotary recording medium recorded with a program information signal and different kinds of address signals having mutually different predetermined codes in correspondence with said program information signal within a program information signal recorded section, said reproducing apparatus comprising:
Claim 2
Dependent Claim
47 words
A rotary recording medium reproducing apparatus for reproducing a rotary recording medium recorded with a program information signal and different kinds of address signals having mutually different predetermined codes in correspondence with said program information signal within a program information signal recorded section, said reproducing apparatus comprising:
Claim 3
Dependent Claim
100 words
a reproducing element for reproducing recorded signals from said rotary recording medium; moving means for moving said reproducing element along a radial direction of said rotary recording medium; address signal detecting means for detecting address signals from signals reproduced by said reproducing element; and driving voltage generating means set with an address signal to be searched, for generating a driving voltage in accordance with the kind of set address signal, and supplying the driving voltage thus generated to said moving means, said moving means moving said reproducing element at a speed in accordance with the kind of said address signal.
Claim 4
Dependent Claim
100 words
a reproducing element for reproducing recorded signals from said rotary recording medium; moving means for moving said reproducing element along a radial direction of said rotary recording medium; address signal detecting means for detecting address signals from signals reproduced by said reproducing element; and driving voltage generating means set with an address signal to be searched, for generating a driving voltage in accordance with the kind of set address signal, and supplying the driving voltage thus generated to said moving means, said moving means moving said reproducing element at a speed in accordance with the kind of said address signal.
Claim 5
Dependent Claim
93 words
A reproducing apparatus as claimed in claim 1 in which the address signals recorded on said rotary recording medium comprises a time address signal for indicating recording positions of the information signal from a recording starting position in reproducing time, and a chapter address signal for indicating numbers of information signal programs, and said moving means moves said reproducing element at a first speed when said set address signal is a time address signal and moves said reproducing element at a second speed when said set address signal is a chapter address signal.
Claim 6
Dependent Claim
46 words
A reproducing apparatus as claimed in claim 2 in which said driving voltage generating means generates a first driving voltage when said set address signal is a time address signal, and generates a second driving voltage when said set address signal is a chapter address signal.
Claim 7
Dependent Claim
68 words
A reproducing apparatus as claimed in claim 1 in which said driving voltage generating means continuously generates said driving voltage when a distance between said reproducing element and and said set address signal position is greater than a predetermined distance, and generates said driving voltage with a duty cycle when the distance between said reproducing element and said set address signal position is less than said predetermined distance.
Claim 8
Dependent Claim
76 words
A reproducing apparatus as claimed in claim 1 in which said driving voltage generating means comprises at least two resistors connected in series having one end thereof connected to a predetermined voltage source, means for varying a voltage connected to the other end of the series connected resistors according to the kind of said set address signal, and means for obtaining a voltage from a connecting point between the two resistors to form the driving voltage.
Claim 9
Dependent Claim
110 words
A reproducing apparatus as claimed in claim 1 in which said driving voltage generating means comprises at least three resistors connected in series having one end thereof connected to a predetermined voltage source, and switching means connected to to a first connection point between a first resistor connected to said predetermined voltage source and a second resistor connected to the first resistor and also connected to a second connection point between the second resistor and a third resistor connected to the second resistor, said switching means switching and obtaining a voltage at said first connection point or said second connection point according to the kind of said set address signal.
Claim 10
Dependent Claim
53 words
A reproducing apparatus as claimed in claim 2 in which said first speed is a speed which is approximately 900 times the moving speed of said reproducing element during normal reproduction, and said second speed is a speed which is approximately 600 times the moving speed of said reproducing element during normal reproduction.
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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) | 1987-10-30 | 1988-04-30 | 1988-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-30 | 1992-04-30 | 1992-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-30 | 1996-04-30 | 1996-10-30 | $7700.00 | Window Closed / Lapsed |