Patent US5144567A successfully refreshed from Google Patents.
US5144567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmable plug and cable for computer keyboards
Assignee: PREH-WERKE & Co KG GmbH
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Filing: 1989-02-27
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Granted: 1992-09-01
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Expires: 2009-02-27
Abstract
Abstract A data input device for an electronic data processing device such as a personal computer includes an input keyboard, which has a key field, a casing and a plug-in receptacle for a keyboard plug on a circuit connector; and a connector, such as a junction cable, which has a keyboard plug which fits into the receptacle on the keyboard, a circuit connector which is a connection wire, a plug at the end of the connection wire connecting with the electronic data processing device, and programmable encoder electronics for encoding unique signals corresponding to each key in the key field on the keyboard. A portion of the encoder electronics, in which the program relating the keyboard to the electronic data processing device is encoded, is located within the keyboard plug and not within the keyboard itself.
Inventors
- 👤 Jurgen Oelsch
- 👤 Gerhard Hochgesang
- 👤 Rudolf Limpert
- 👤 Dieter Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:35
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/023; G06F3/0238; H; H01; H01H; H01H2300/00; H01H2300/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A data input device for an electronic data processing device comprising: an input keyboard without keyboard encoder electronics comprising a key field including a plurality of keys, a casing and a plug-in receptacle for a keyboard plug; and means for connecting the input keyboard to the electronic data processing device, said means for connecting comprising: the keyboard plug, a circuit connector comprising a connection wire, a plug at an end of the connection wire connecting with the electronic data processing device, and programmable encoder electronics, located within the keyboard plug, for encoding unique signals corresponding to each key in the key field on the keyboard, said encoder electronics, comprising a reprogrammable program memory in which is encoded a program relating the keyboard and the electronic data processing device.
Claim 2
Dependent Claim
128 words
A data input device for an electronic data processing device comprising: an input keyboard without keyboard encoder electronics comprising a key field including a plurality of keys, a casing and a plug-in receptacle for a keyboard plug; and means for connecting the input keyboard to the electronic data processing device, said means for connecting comprising: the keyboard plug, a circuit connector comprising a connection wire, a plug at an end of the connection wire connecting with the electronic data processing device, and programmable encoder electronics, located within the keyboard plug, for encoding unique signals corresponding to each key in the key field on the keyboard, said encoder electronics, comprising a reprogrammable program memory in which is encoded a program relating the keyboard and the electronic data processing device.
Claim 3
Dependent Claim
25 words
The data input device according to claim 1, wherein connecting terminals of the reprogrammable program memory are connected with wall plugs of the keyboard plug.
Claim 4
Dependent Claim
22 words
The data input device according to claim 2, wherein the wall plugs of the keyboard plug are part of a printed circuit.
Claim 5
Dependent Claim
116 words
A junction cable for connecting an input keyboard having keys with a personal computer, comprising: a keyboard plug which comprises a capsule which is configured on its exterior to mate with a receptacle on the input keyboard, a connection wire connected at one end to the keyboard plug, a plug at the other end of the connection wire connecting with the personal computer, and a UV-erasable reprogrammable IC as reprogrammable program memory, located within the capsule of the keyboard plug, for encoding unique signals corresponding to each of the keys of the input keyboard, said keyboard plug having an opening therein which is closable by a cap located above a window in the UV-erasable reprogrammable IC.
Claim 6
Dependent Claim
116 words
A junction cable for connecting an input keyboard having keys with a personal computer, comprising: a keyboard plug which comprises a capsule which is configured on its exterior to mate with a receptacle on the input keyboard, a connection wire connected at one end to the keyboard plug, a plug at the other end of the connection wire connecting with the personal computer, and a UV-erasable reprogrammable IC as reprogrammable program memory, located within the capsule of the keyboard plug, for encoding unique signals corresponding to each of the keys of the input keyboard, said keyboard plug having an opening therein which is closable by a cap located above a window in the UV-erasable reprogrammable IC.
Claim 7
Dependent Claim
24 words
The junction cable according to claim 4, wherein connecting terminals of the UV-erasable reprogrammable IC are connected with wall plugs of the keyboard plug.
Claim 8
Dependent Claim
21 words
The junction cable according to claim 5, wherein the wall plugs of the keyboard plug are part of a printed circuit.
Claim 9
Dependent Claim
155 words
A data input device for an electronic data processing device comprising: an input keyboard comprising a key field including a plurality of keys, a casing and a plug-in receptacle for a keyboard plug; and means for connecting the input keyboard to the electronic data processing device, said means for connecting comprising: the keyboard plug, a circuit connector comprising a connection wire, a plug at an end of the connection wire connecting with the electronic data processing device, and programmable encoder electronics for encoding unique signals corresponding to each key in the key field on the keyboard, said keyboard plug comprising at least a portion of the encoder electronics, which portion comprises a UV-erasable IC as a reprogrammable program memory in which is encoded a program relating the keyboard and the electronic data processing device, keyboard plug having an opening therein which is closable by a cap located above a window in the UV-erasable reprogrammable IC.
Claim 10
Dependent Claim
155 words
A data input device for an electronic data processing device comprising: an input keyboard comprising a key field including a plurality of keys, a casing and a plug-in receptacle for a keyboard plug; and means for connecting the input keyboard to the electronic data processing device, said means for connecting comprising: the keyboard plug, a circuit connector comprising a connection wire, a plug at an end of the connection wire connecting with the electronic data processing device, and programmable encoder electronics for encoding unique signals corresponding to each key in the key field on the keyboard, said keyboard plug comprising at least a portion of the encoder electronics, which portion comprises a UV-erasable IC as a reprogrammable program memory in which is encoded a program relating the keyboard and the electronic data processing device, keyboard plug having an opening therein which is closable by a cap located above a window in the UV-erasable reprogrammable IC.
Claim 11
Dependent Claim
25 words
The data input device according to claim 7, wherein connecting terminals of the UV-erasable reprogrammable IC are connected with wall plugs of the keyboard plug.
Claim 12
Dependent Claim
22 words
The data input device according to claim 8, wherein the wall plugs of the keyboard plug are part of a printed circuit.
References Cited (Backward Citations)
US3760375A
Cited
US3706973A
Cited
US4200913A
Cited
US4156928A
Cited
US4441164A
Cited
EP0047078A2
Cited
US4527250A
Cited
US4567556A
Cited
US4404551A
Cited
US4459581A
Cited
US4481587A
Cited
US4456972A
Cited
EP0093509A1
Cited
US4641262A
Cited
US4688020A
Cited
US4692870A
Cited
US4853888A
Cited
US4763252A
Cited
US4779079A
Cited
US4937778A
Cited
EP0251477A2
Cited
US4823311A
Cited
US4964075A
Cited
US4868780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |