US4413291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette tape player-recorder
Assignee: Pioneer Corp
•
Filing: 1981-09-28
•
Granted: 1983-11-01
•
Expires: 2001-09-28
Abstract
Abstract A cassette tape player-recorder of slot-in type which includes first detecting means for detecting the insertion of cassette into the slot, second detecting means for detecting correct placement of the inserted cassette at the operable position, a reset signal generator for producing a reset signal when a time longer than a predetermined period lapses from the insertion of the cassette into the slot until the correct positioning of the cassette at the operable position, and a cassette eject controller for ejecting the cassette in response to the reset signal. The cassette tape player-recorder can avoid malfunction thereof and damage of the cassette.
Inventors
- 👤 Yoshiharu Ueki
- 👤 Shouzaburou Sakaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:30
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/16; G11B15/675
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
222 words
In a cassette tape player-recorder of slot-in type which includes a cassette receiving tunnel opened through a cassette insertion slot to the outside, a carriage movable in said tunnel for carrying a cassette inserted into said tunnel through said cassette insertion slot, a carriage control mechanism connected to said carriage for actuating said carriage so as to position said cassette at an operable or inoperable position, a tape advancing mechanism for advancing a recording tape contained in said cassette when said cassette is placed at said operable position, a head positioning mechanism for positioning a magnetic head relative to said recording tape, and a controller for controlling said tape advancing and head positioning mechanisms so as to perform predetermined modes of operation, the improvement comprises: first detecting means placed within said cassette receiving tunnel, for detecting the insertion of a cassette into said tunnel; second detecting means for detecting that said cassette is placed at said operable position; a reset signal generator connected to said first and second detecting means, for producing a reset signal when a time longer than a predetermined period lapses from the insertion of said cassette into said tunnel until said cassette is positioned at said operable position; a cassette eject controller connected to said carriage control mechanism for ejecting said cassette in response to said reset signal.
Claim 2
Dependent Claim
222 words
In a cassette tape player-recorder of slot-in type which includes a cassette receiving tunnel opened through a cassette insertion slot to the outside, a carriage movable in said tunnel for carrying a cassette inserted into said tunnel through said cassette insertion slot, a carriage control mechanism connected to said carriage for actuating said carriage so as to position said cassette at an operable or inoperable position, a tape advancing mechanism for advancing a recording tape contained in said cassette when said cassette is placed at said operable position, a head positioning mechanism for positioning a magnetic head relative to said recording tape, and a controller for controlling said tape advancing and head positioning mechanisms so as to perform predetermined modes of operation, the improvement comprises: first detecting means placed within said cassette receiving tunnel, for detecting the insertion of a cassette into said tunnel; second detecting means for detecting that said cassette is placed at said operable position; a reset signal generator connected to said first and second detecting means, for producing a reset signal when a time longer than a predetermined period lapses from the insertion of said cassette into said tunnel until said cassette is positioned at said operable position; a cassette eject controller connected to said carriage control mechanism for ejecting said cassette in response to said reset signal.
Claim 3
Dependent Claim
39 words
The improvement as defined in claim 1, in which said first detecting means includes a first mechanical switch positioned in the vicinity of said carriage and adapted to actuate when said cassette is inserted into said cassette receiving tunnel.
Claim 4
Dependent Claim
32 words
The improvement as defined in claim 1, in which said second detecting means includes a second mechanical switch so positioned as to actuate when said cassette is positioned at said operable position.
Claim 5
Dependent Claim
66 words
The improvement as defined in claim 1, in which said reset signal generator includes a charging capacitor a charging circuit for charging said capacitor as long as said first mechanical switch is actuated, a discharging circuit said chaging capacitor when said secon mechanical switch is actuated, and a switching element for producing said reset signal when a voltage across said charging capacitor exceeds a predetermined level.
References Cited (Backward Citations)
US3765685A
Cited
US3932889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |