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Patent US5097459A successfully refreshed from Google Patents.
US5097459A
Expired / Lapsed
US
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Disc playing apparatus to which digital data is transmitted at a predetermined transmission rate
Assignee: Pioneer Corp
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Filing: 1989-11-06
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Granted: 1992-03-17
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Expires: 2009-11-06
Abstract
Abstract A disc playing apparatus allows to set the reproduction speed of subcode information at a designated speed. The subcode read-out by a reading device is decoded by a decoding device and each piece of digital data successively output from the decoding device is transmitted at a predetermined transmission rate. The interval between pieces of the digital data is varied in response to a designated reproduction speed, and at the same time each piece of the digital data is transmitted at the predetermined transmission rate.
Inventors
- 👤 Junichi Yoshio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:02
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G10; G10H; G10H1/00; G10H1/0033; G10H1/0041; G10H1/0058; G10H1/0066; G11B27/005; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; H04N5/9208; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A disc playing apparatus for playing a disc on which digital data which is to be transmitted at a predetermined transmission rate is recorded as a subcode, in addition to a coded information signal, the apparatus comprising: disc driving means for rotating said disc at a rotational speed corresponding to a designated reproduction speed; reading means for reading said coded information signal and said subcode from said disc; decoding means for decoding said subcode readout by said reading means and successively outputting pieces of digital data at a rate corresponding to said designated reproduction speed; and signal transmission means for receiving each piece of said digital data successively outputted by said decoding means at the rate corresponding to said designated reproduction speed, and transmitting each piece of said digital data at said predetermined transmission rate.
Claim 2
Dependent Claim
135 words
A disc playing apparatus for playing a disc on which digital data which is to be transmitted at a predetermined transmission rate is recorded as a subcode, in addition to a coded information signal, the apparatus comprising: disc driving means for rotating said disc at a rotational speed corresponding to a designated reproduction speed; reading means for reading said coded information signal and said subcode from said disc; decoding means for decoding said subcode readout by said reading means and successively outputting pieces of digital data at a rate corresponding to said designated reproduction speed; and signal transmission means for receiving each piece of said digital data successively outputted by said decoding means at the rate corresponding to said designated reproduction speed, and transmitting each piece of said digital data at said predetermined transmission rate.
Claim 3
Dependent Claim
179 words
A disc playing apparatus for playing a disc on which digital data which is to be transmitted at a predetermined transmission rate is recorded as a subcode in addition to a coded information signal, the apparatus comprising; disc driving means; reading means for reading said coded information signal and said subcode from said disc; decoding means for decoding said subcode read-out by said reading means and producing digital data; and signal transmission means which comprises: interval detection means for detecting the interval between pieces of said digital data successively outputted from said decoding means and producing interval data representing said interval; memory means for storing said digital data supplied from said decoding means; memory control means for successively writing said digital data output from said decoding means and in turn reading-out said digital data written in said memory means at intervals obtained by adjusting the interval represented by said interval data in response to a designated reproduction speed; and means for transmitting said digital data readout from said memory means successively by one bit at said predetermined transmission rate.
Claim 4
Dependent Claim
179 words
A disc playing apparatus for playing a disc on which digital data which is to be transmitted at a predetermined transmission rate is recorded as a subcode in addition to a coded information signal, the apparatus comprising; disc driving means; reading means for reading said coded information signal and said subcode from said disc; decoding means for decoding said subcode read-out by said reading means and producing digital data; and signal transmission means which comprises: interval detection means for detecting the interval between pieces of said digital data successively outputted from said decoding means and producing interval data representing said interval; memory means for storing said digital data supplied from said decoding means; memory control means for successively writing said digital data output from said decoding means and in turn reading-out said digital data written in said memory means at intervals obtained by adjusting the interval represented by said interval data in response to a designated reproduction speed; and means for transmitting said digital data readout from said memory means successively by one bit at said predetermined transmission rate.
Claim 5
Dependent Claim
49 words
An apparatus as claimed in claim 2, further comprising play control means for jumping an information reading point of said reading means by a predetermined number of track spacings each time when a difference between writing and reading addresses of said memory means becomes larger than a predetermined value.
References Cited (Backward Citations)
US4994925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |