Patent US4979147A successfully refreshed from Google Patents.
US4979147A
Expired / Lapsed
US
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Electronic device with key switch
Assignee: Toshiba Corp
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Filing: 1989-08-23
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Granted: 1990-12-18
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Expires: 2009-08-23
Abstract
Abstract An electronic data input device for temporary storage of the data in a random memory, includes a memory device for storing a predetermined data. The electronic data input device comprises a keyswitch device for entry of data, an input port device for receiving the entered data from the keyswitch device, and an output port device coupled to the keyswitch device for temporary storage of the predetermined data from the memory device, and transfer of the predetermined data to the keyswitch device. Means are provided for simultaneously transferring the predetermined data from the memory device to the output port device and the entered data from the input port device to the random memory.
Inventors
- 👤 Hiroshi Ushiki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:13
CPC Classifications
H; H03; H03M; H03M11/00; H03M11/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
103 words
An electronic data input device for temporary storage of the input data in a random memory, the device including memory means for storing predetermined data, comprising: keyswitch means for entry of data; input port means for receiving the entered data from the keyswitch means; output port means coupled to the keyswitch means for temporary storage of the predetermined data from the memory means and transfer of the predetermined data to the keyswitch means; and means for simultaneously transferring the predetermined data from the memory means to the output port means and the entered data from the input port means to the random memory.
Claim 2
Dependent Claim
103 words
An electronic data input device for temporary storage of the input data in a random memory, the device including memory means for storing predetermined data, comprising: keyswitch means for entry of data; input port means for receiving the entered data from the keyswitch means; output port means coupled to the keyswitch means for temporary storage of the predetermined data from the memory means and transfer of the predetermined data to the keyswitch means; and means for simultaneously transferring the predetermined data from the memory means to the output port means and the entered data from the input port means to the random memory.
Claim 3
Dependent Claim
54 words
The device of claim 1 wherein the simultaneous transfer means includes bus-line means connected to the input port means for transferring the entered data from the input port means to the random memory, and means for by-passing the bus-line means and transferring the predetermined data from the memory means to the output port means.
Claim 4
Dependent Claim
37 words
The device of claim 2 wherein the by-passing means includes decoding means for receiving the predetermined data from the memory means and transferring the predetermined data to the output port means without access to the bus-line means.
Claim 5
Dependent Claim
74 words
The device of claim 3 wherein the by-passing means also is connected to the memory means and the output port means and the device also includes means for switching between a first position wherein the predetermined data is transferred from the memory means to the output port means by the by-passing means and a second position wherein the predetermined data is transferred from memory means to the output port means by the bus-line means.
References Cited (Backward Citations)
US4723226A
Cited
US4718044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-17 | 1994-06-18 | 1994-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-17 | 1998-06-18 | 1998-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-17 | 2002-06-18 | 2002-12-18 | $7700.00 | Window Closed / Lapsed |