US4894814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical disc player with pause function in response to elapsed preset maximum playback time period
Assignee: Panasonic Holdings Corp
•
Filing: 1987-05-21
•
Granted: 1990-01-16
•
Expires: 2007-05-21
Abstract
Abstract An optical disc player having a timer for counting the elapse of time from the start of reproduction of music on an optical disc, an input for entering a desired reproduction time, a memory for storing the desired reproduction time and a logic processor for comparing the passage of time counted by the timer. The disc player pauses without going back to the starting position the reproduction of music when the elapsed time coincides with the desired reproduction time.
Inventors
- 👤 Jiro Yamada
- 👤 Susumu Kinoshita
- 👤 Haruhisa Tomoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:22
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/08; G11B19/00; G11B19/20; G11B19/02; G11B19/06; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/11; G11B27/34; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/60; G11B2220/65
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
213 words
An optical disc player comprising: input means for entering a desired reproducing time period during which an optical disc is to be reproduced and a start signal by which reproduction of said optical disc is started; optical pick-up means for reading optical digital signals stored in said optical disc and for issuing electric digital signals corresponding to said optical digital signals; memory means for storing said desired reproducing time period; disc reproducing means for controlling the position of said optical pick-up means; timer means for counting elapsed time from the start of the reproduction of said optical disc at receipt of said start signal from said input means; and logic processing means for comparing said desired reproducing time period stored in said memory means with said elapsed time counted by said timer means, and for issuing a control signal to said disc reproducing means for stopping said optical pick-up means on a position where it is at in a pausing state when said elapsed time coincides with said desired reproducing time period; and said logic processing means includes causing restarting said disc reproducing means for controlling the position of said optical pick-up means from said position where said optical pick-up means is stopped when another start signal is entered by said input means.
Claim 2
Dependent Claim
213 words
An optical disc player comprising: input means for entering a desired reproducing time period during which an optical disc is to be reproduced and a start signal by which reproduction of said optical disc is started; optical pick-up means for reading optical digital signals stored in said optical disc and for issuing electric digital signals corresponding to said optical digital signals; memory means for storing said desired reproducing time period; disc reproducing means for controlling the position of said optical pick-up means; timer means for counting elapsed time from the start of the reproduction of said optical disc at receipt of said start signal from said input means; and logic processing means for comparing said desired reproducing time period stored in said memory means with said elapsed time counted by said timer means, and for issuing a control signal to said disc reproducing means for stopping said optical pick-up means on a position where it is at in a pausing state when said elapsed time coincides with said desired reproducing time period; and said logic processing means includes causing restarting said disc reproducing means for controlling the position of said optical pick-up means from said position where said optical pick-up means is stopped when another start signal is entered by said input means.
Claim 3
Dependent Claim
247 words
An optical disc player comprising: input means for entering numbers corresponding to the position of musical selections on an optical disc in a selected order to be reproduced, a desired reproducing time period during which said music is to be reproduced and a start signal by which reproduction of said optical disc is started; optical pick-up means for reading optical digital signals stored in said optical disc and for issuing electric digital signals corresponding to said optical digital signals; memory means for storing data corresponding to said numbers of the position of said musical selection, said selected order and said desired reproducing time period; disc reproducing means for controlling the position of said optical pick-up means; timer means for counting elapsed time from the start of the reproduction of said optical disc at receipt of said start signal from said input means; and logic processing means for comparing said desired reproducing time period stored in said memory means with said elapsed time counted by said timer means, and for issuing a control signal to said disc reproducing means for stopping said optical pick-up means on a position where it is at in a pausing state when said elapsed time coincides with said desired reproducing time period; and said logic processing means includes causing restarting said disc reproducing means for controlling the position of said optical pick-up means from said position where said optical pick-up means is stopped when another start signal is entered by said input means.
Claim 4
Dependent Claim
247 words
An optical disc player comprising: input means for entering numbers corresponding to the position of musical selections on an optical disc in a selected order to be reproduced, a desired reproducing time period during which said music is to be reproduced and a start signal by which reproduction of said optical disc is started; optical pick-up means for reading optical digital signals stored in said optical disc and for issuing electric digital signals corresponding to said optical digital signals; memory means for storing data corresponding to said numbers of the position of said musical selection, said selected order and said desired reproducing time period; disc reproducing means for controlling the position of said optical pick-up means; timer means for counting elapsed time from the start of the reproduction of said optical disc at receipt of said start signal from said input means; and logic processing means for comparing said desired reproducing time period stored in said memory means with said elapsed time counted by said timer means, and for issuing a control signal to said disc reproducing means for stopping said optical pick-up means on a position where it is at in a pausing state when said elapsed time coincides with said desired reproducing time period; and said logic processing means includes causing restarting said disc reproducing means for controlling the position of said optical pick-up means from said position where said optical pick-up means is stopped when another start signal is entered by said input means.
Claim 5
Dependent Claim
229 words
An optical disc player comprising: input means for entering a desired reproducing time period during which an optical disc is to be reproduced and a start signal by which reproduction of said optical disc is started; optical pick-up means for reading optical digital signals stored in said optical disc and for issuing electric digital signals corresponding to said optical digital signals; memory means for storing said desired reproducing time period; disc reproducing means for controlling the position of said optical pick-up means; timer means for counting elapsed time from the start of the reproducing of said optical disc at receipt of said start signal from said input means; display means for indicating time information due to the elapsed time count of said timer means; and logic processing means for comparing said desired reproducing time period stored in said memory means with said elapsed time counted by said timer means, and for issuing a control signal to said disc reproducing means for stopping said optical pick-up means on a position where it is at in a pausing state when said elapsed time coincides with said desired reproducing time period; and said logic processing means include causing restarting said disc reproducing means for controlling the position of said optical pick-up means from said position where said optical pick-up mean is stopped when another start signal is entered by said input means.
Claim 6
Dependent Claim
229 words
An optical disc player comprising: input means for entering a desired reproducing time period during which an optical disc is to be reproduced and a start signal by which reproduction of said optical disc is started; optical pick-up means for reading optical digital signals stored in said optical disc and for issuing electric digital signals corresponding to said optical digital signals; memory means for storing said desired reproducing time period; disc reproducing means for controlling the position of said optical pick-up means; timer means for counting elapsed time from the start of the reproducing of said optical disc at receipt of said start signal from said input means; display means for indicating time information due to the elapsed time count of said timer means; and logic processing means for comparing said desired reproducing time period stored in said memory means with said elapsed time counted by said timer means, and for issuing a control signal to said disc reproducing means for stopping said optical pick-up means on a position where it is at in a pausing state when said elapsed time coincides with said desired reproducing time period; and said logic processing means include causing restarting said disc reproducing means for controlling the position of said optical pick-up means from said position where said optical pick-up mean is stopped when another start signal is entered by said input means.
Claim 7
Dependent Claim
35 words
An optical disc player in accordance with claim 3, wherein said display means indicates a remaining time period which is said elapsed time subtracted from said desired reproducing time period by said logic processing means.
References Cited (Backward Citations)
US4193120A
Cited
FR2509508A1
Cited
CA1171172A
Cited
DE3231581A1
Cited
US4600948A
Cited
US4701898A
Cited
EP0169597A1
Cited
US4667314A
Cited
US4626106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |