Patent US5057784A successfully refreshed from Google Patents.
US5057784A
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Automatic reading apparatus for capstan reproducing speed mode
Assignee: LG Electronics Inc
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Filing: 1989-07-24
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Granted: 1991-10-15
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Expires: 2009-07-24
Abstract
Abstract An apparatus for automatically reads a mode of a capstan reproducing speed by counting pulse signals generated from a capstan motor. This apparatus uses a pulse generator for generating pulse signals and, a frequency multiplier for doubling the capstan frequency generator signals. A counter circuit is used for counting output pulse signals of the frequency multiplier, and a gate processing circuit outputs three different reproducing speed discrimination control pulse signals in response to the signals counted by the counter circuit. A detection error compensating circuit outputs an Extended playing mode discrimination signal and a Long Playing mode discrimination signal from a reproducing speed discrimination control signal of the gate processing circuit by being driven by the pulse signals of the pulse generator. A Standard Playing mode discrimination signal is outputted by a logic combination from output signals of the detection error compensating circuit.
Inventors
- 👤 Seong B. Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:30
CPC Classifications
G; G11; G11B; G11B15/00; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/489
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
206 words
An automatic reading apparatus for determining a capstan reproducing speed mode, comprising: pulse generator means for receiving a control clock signal and for generating a signal of pulses corresponding to a period of said control clock signal; frequency multiplier means for multiplying a frequency of a capstan frequency generator signal and for generating an output signal of pulses therefrom; counter means, operative connected to said pulse generator means and said frequency multiplier means, for counting said output signal of pulses from said frequency multiplier means; processing means for preventing said output signal of pulses from frequency multiplier means from being applied to said counter means when said counter means has counted to a maximum value and for outputting reproducing speed discrimination control signals in response to a count value received from said counter means; and detection error compensating means, responsive to said output signal of pulses from said pulse generator means, for outputting an extended playing mode discrimination signal and a long playing mode discrimination signal according to said reproducing speed discrimination control signals from said processing means and for outputting a standard playing mode discrimination signal according to a logic combination of said extended playing mode discrimination signal and said long playing mode discrimination signal.
Claim 2
Dependent Claim
206 words
An automatic reading apparatus for determining a capstan reproducing speed mode, comprising: pulse generator means for receiving a control clock signal and for generating a signal of pulses corresponding to a period of said control clock signal; frequency multiplier means for multiplying a frequency of a capstan frequency generator signal and for generating an output signal of pulses therefrom; counter means, operative connected to said pulse generator means and said frequency multiplier means, for counting said output signal of pulses from said frequency multiplier means; processing means for preventing said output signal of pulses from frequency multiplier means from being applied to said counter means when said counter means has counted to a maximum value and for outputting reproducing speed discrimination control signals in response to a count value received from said counter means; and detection error compensating means, responsive to said output signal of pulses from said pulse generator means, for outputting an extended playing mode discrimination signal and a long playing mode discrimination signal according to said reproducing speed discrimination control signals from said processing means and for outputting a standard playing mode discrimination signal according to a logic combination of said extended playing mode discrimination signal and said long playing mode discrimination signal.
Claim 3
Dependent Claim
208 words
An automatic reading apparatus for determining a capstan reproducing speed mode, comprising: pulse generator means for receiving a control clock signal and for generating a signal of pulses corresponding to a period of said control clock signal; frequency multiplier means for multiplying a frequency of a capstan frequency generator signal and for generating an output signal of pulses therefrom; counter means, operative connected to said pulse generator means and said frequency multiplier means, for counting said output signal of pulses from said frequency multiplier means; processing means for preventing said output signal of pulses from frequency multiplier means from being applied to said counter means when said counter means has counted to a maximum value and for outputting reproducing speed discrimination control signals in response to a count value received from said counter means; and detection error compensating means, responsive to said signal of pulses from said pulse generator means, for outputting an extended playing mode discrimination control signal and a long playing mode discrimination signal when reproducing speed discrimination control signals are outputted three times from said processing means and for outputting a standard playing mode discrimination signal according to a logic combination of said extended playing mode discrimination signal and said long playing mode discrimination signal.
Claim 4
Dependent Claim
208 words
An automatic reading apparatus for determining a capstan reproducing speed mode, comprising: pulse generator means for receiving a control clock signal and for generating a signal of pulses corresponding to a period of said control clock signal; frequency multiplier means for multiplying a frequency of a capstan frequency generator signal and for generating an output signal of pulses therefrom; counter means, operative connected to said pulse generator means and said frequency multiplier means, for counting said output signal of pulses from said frequency multiplier means; processing means for preventing said output signal of pulses from frequency multiplier means from being applied to said counter means when said counter means has counted to a maximum value and for outputting reproducing speed discrimination control signals in response to a count value received from said counter means; and detection error compensating means, responsive to said signal of pulses from said pulse generator means, for outputting an extended playing mode discrimination control signal and a long playing mode discrimination signal when reproducing speed discrimination control signals are outputted three times from said processing means and for outputting a standard playing mode discrimination signal according to a logic combination of said extended playing mode discrimination signal and said long playing mode discrimination signal.
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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) | 1994-10-14 | 1995-04-15 | 1995-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-14 | 1999-04-15 | 1999-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-14 | 2003-04-15 | 2003-10-15 | $7700.00 | Window Closed / Lapsed |