US4755883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable information inputting device for an electronic recording apparatus
Assignee: Sharp Corp
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Filing: 1985-09-11
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Granted: 1988-07-05
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Expires: 2005-09-11
Abstract
Abstract A removable information inputting device which is removably provided with an electronic apparatus includes a keyboard for inputting an information of a program to be recorded, a memory for storing the information from the keyboard, a control circuit for controlling the input and the output of the information stored in the memory, and an optical transmission circuit for optically transmitting the information from the memory to the electronic apparatus.
Inventors
- 👤 Shigeyuki Uehira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/0008; H03J1/0016; G; G11; G11B; G11B19/00; G11B19/02; H03J1/0025; H03J2200/00; H03J2200/23
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
312 words
An electronic recording and reproducing apparatus comprising: a removable information inputting device for providing programming information to said apparatus, said removable information inputting device including key input means for inputting program recording information into the removable device, display means for displaying the input program recording information, memory means for storing the input program recording information, optical transmission means for optically transmitting data relating to the input program information in said memory means to said electronic recording and reproducing apparatus, said optical transmission means including a light emitting diodie and a phototransistor, and memory control means for controlling input and output of program recording information to said memory means; means for loading a recording and reproducing medium into said apparatus; a display portion for displaying current program recording or reproducing information; key input means for directly controlling operations of said electronic apparatus; means for receiving said removable information inputting device internally of said electronic apparatus; memory means for storing program information optically transmitted from said removable information inputting device; optical transmission means for communicating with said removable information inputting device, said optical transmission means including a phototransistor and a light emitting diode; memory control means for controlling input and output of program recording and reproducing information received from said removable information inputting device; means for detecting complete insertion of said removable information inputting device internally of said electronic recording and reproducing apparatus; and means for operating said recording and reproducing apparatus according to information stored in said memory means; wherein upon complete insertion of said removable information inputting device into said electronic recording and reproducing apparatus, said removable device optically transmits recording information to said memory means of said electronic apparatus through the light emitting diode of said removable device and phototransistor of said electronic apparatus such that the electronic apparatus operates by the stored information received from said removable information inputting device.
Claim 2
Dependent Claim
312 words
An electronic recording and reproducing apparatus comprising: a removable information inputting device for providing programming information to said apparatus, said removable information inputting device including key input means for inputting program recording information into the removable device, display means for displaying the input program recording information, memory means for storing the input program recording information, optical transmission means for optically transmitting data relating to the input program information in said memory means to said electronic recording and reproducing apparatus, said optical transmission means including a light emitting diodie and a phototransistor, and memory control means for controlling input and output of program recording information to said memory means; means for loading a recording and reproducing medium into said apparatus; a display portion for displaying current program recording or reproducing information; key input means for directly controlling operations of said electronic apparatus; means for receiving said removable information inputting device internally of said electronic apparatus; memory means for storing program information optically transmitted from said removable information inputting device; optical transmission means for communicating with said removable information inputting device, said optical transmission means including a phototransistor and a light emitting diode; memory control means for controlling input and output of program recording and reproducing information received from said removable information inputting device; means for detecting complete insertion of said removable information inputting device internally of said electronic recording and reproducing apparatus; and means for operating said recording and reproducing apparatus according to information stored in said memory means; wherein upon complete insertion of said removable information inputting device into said electronic recording and reproducing apparatus, said removable device optically transmits recording information to said memory means of said electronic apparatus through the light emitting diode of said removable device and phototransistor of said electronic apparatus such that the electronic apparatus operates by the stored information received from said removable information inputting device.
Claim 3
Dependent Claim
48 words
The electronic recording and reproducing apparatus according to claim 1, wherein said removable information inputting device further includes an amplifier circuit responsive to said phototransistor, a control processing unit, and a driver circuit for controlling the light emitting diode in response to instructions from the central processing unit.
Claim 4
Dependent Claim
45 words
The electronic recording and reproducing apparatus according to claim 1, wherein said apparatus further includes a central processing unit, a driver circuit for controlling the light emitting diode in response to instructions from said central processing unit, and an amplifier circuit responsive to said photoransistor.
Claim 5
Dependent Claim
73 words
The electronic recording and reproducing apparatus according to claim 1, wherein said light emitting diode and said phototransistor of said removable information inputting device are positioned at right angles to each other and opposed to said phototransistor and said light emitting device, respectively, in order to prevent light of the removable information inputting device light emitting diode from being applied to the phototransistor of the removable information inputting device and causing a malfunction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |