Patent US2953145A successfully refreshed from Google Patents.
US6133833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless add-on keyboard system and method
Assignee: Motorola Solutions Inc
•
Filing: 1999-02-25
•
Granted: 2000-10-17
•
Expires: 2019-02-25
Abstract
Abstract A wireless keyboard or keypad (22) is powered remotely by a radio frequency exciter/receiver (20) and used in a radio frequency identification system (10). The wireless keyboard and the exciter/receiver communicate without wires via electrostatic or electromagnetic radiation. No power source is integrated with the wireless keypad. Thus, the wireless keypad is readily added to, or retrofit into, an existing radio frequency identification system. The keyboard has a plurality of keys (24) or control members that are manually actuated. Depression of a key or button, or other actuation of a control member, causes a predetermined response signal associated with that key to be generated. The response signal relates to an operation for a device or system associated with the exciter/receiver.
Inventors
- 👤 Tom Sidlauskas
- 👤 Frederick A. Nylander
- 👤 Stephen Joseph Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/023; G06F3/0231
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
107 words
A wireless keyboard system comprising: an exciter/receiver that produces an excitation field generated by at least one of electrostatic and electromagnetic radiation; a keyboard in signal communication with the excitation field such that the keyboard is powered by the excitation field and produces a response signal; at least one manually actuated element on the keyboard, the at least one manually actuated element being coupled to at least one radio frequency identification circuit such that actuation of the at least one manually actuated element causes the keyboard to produce a predetermined response signal; and wherein the keyboard is mounted in a fixed position in proximity to the exciter/receiver.
Claim 2
Dependent Claim
107 words
A wireless keyboard system comprising: an exciter/receiver that produces an excitation field generated by at least one of electrostatic and electromagnetic radiation; a keyboard in signal communication with the excitation field such that the keyboard is powered by the excitation field and produces a response signal; at least one manually actuated element on the keyboard, the at least one manually actuated element being coupled to at least one radio frequency identification circuit such that actuation of the at least one manually actuated element causes the keyboard to produce a predetermined response signal; and wherein the keyboard is mounted in a fixed position in proximity to the exciter/receiver.
Claim 3
Dependent Claim
26 words
The wireless keyboard system of claim 1, wherein the at least one manually actuated element comprises one of a numeric button, alphabetic button and alphanumeric button.
Claim 4
Dependent Claim
16 words
The wireless keyboard system of claim 1, wherein the exciter/receiver is part of a sentry system.
Claim 5
Dependent Claim
25 words
The wireless keyboard system of claim 1, wherein the at least one manually actuated element is at least one of a key, switch and button.
Claim 6
Dependent Claim
17 words
The wireless keyboard system of claim 1, wherein the excitation field has a frequency of 125 KHz.
Claim 7
Dependent Claim
17 words
The wireless keyboard system of claim 5, wherein the response signal has a frequency of 62.5 KHz.
Claim 8
Dependent Claim
27 words
The wireless keyboard system of claim 1 wherein the keyboard is mounted on a wall and the exciter/receiver is mounted near an opposite side of the wall.
Claim 9
Dependent Claim
26 words
The wireless keyboard system of claim 1 wherein the keyboard has a housing and the housing is configured to rest on a surface of the exciter/receiver.
Claim 10
Dependent Claim
78 words
The wireless keyboard system of claim 1, wherein the keyboard comprises: a first circuit that is capable of being in a closed circuit configuration and an open circuit configuration; at least one of an electrostatic antenna and an electromagnetic antenna; and at least one actuated element that is capable of placing the first circuit in the closed circuit configuration to couple the at least one of an electrostatic antenna and electromagnetic antenna to produce a pulse code signal.
Claim 11
Dependent Claim
98 words
The wireless keyboard system of claim 1, wherein the keyboard comprises: a first circuit that is capable of obtaining a closed circuit configuration and an open circuit configuration; at least one of an electrostatic antenna and an electromagnetic antenna; a code storing circuit that stores a code; and wherein the at least one manually actuated element is operable to place the first circuit in the closed circuit configuration and to couple the at least one of an electrostatic antenna and electromagnetic antenna to produce a pulse code signal corresponding to the code stored in the code storing circuit.
Claim 12
Dependent Claim
90 words
The wireless keyboard system of claim 1 wherein the at least one radio frequency identification circuit is a single radio frequency identification circuit comprising: a decoder coupled to the at least one manually actuated element to decode a depressed manually actuated element; control logic coupled to the decoder to determine a selected modulation based on the depressed manually actuated element; and a modulator coupled to the control logic to receive the selected modulation and provide a modulated signal to an antenna, the modulated signal being determined by the selected modulation.
Claim 13
Dependent Claim
44 words
The wireless keyboard system of claim 1 further comprising: a programmable decoder coupled to the at least one manually actuated element, wherein the programmable decoder selectively changes a code associated with the at least one manually actuated element in response to a programming signal.
Claim 14
Dependent Claim
17 words
The wireless keyboard system of claim 12 wherein the programming signal is received by a programming antenna.
Claim 15
Dependent Claim
37 words
The wireless keyboard system of claim 13 wherein the exciter/receiver includes an exciter antenna element and a receiver antenna element and the programming antenna is distinct from both the exciter antenna element and the receiver antenna element.
Claim 16
Dependent Claim
14 words
The wireless keyboard system of claim 14 wherein the programmable decoder comprises a microprocessor.
Claim 17
Dependent Claim
107 words
A wireless keyboard system comprising: an exciter/receiver that produces an excitation field generated by at least one of electrostatic and electromagnetic radiation; a keyboard in signal communication with the excitation field such that the keyboard is powered by the excitation field and produces a response signal; a plurality of manually actuated elements on the keyboard, each one of the plurality of manually actuated elements being coupled to one of a plurality of radio frequency identification circuits such that actuation of one of the plurality of manually actuated elements causes the keyboard to produce a predetermined response signal; and wherein the keyboard is in proximity to the exciter/receiver.
Claim 18
Dependent Claim
107 words
A wireless keyboard system comprising: an exciter/receiver that produces an excitation field generated by at least one of electrostatic and electromagnetic radiation; a keyboard in signal communication with the excitation field such that the keyboard is powered by the excitation field and produces a response signal; a plurality of manually actuated elements on the keyboard, each one of the plurality of manually actuated elements being coupled to one of a plurality of radio frequency identification circuits such that actuation of one of the plurality of manually actuated elements causes the keyboard to produce a predetermined response signal; and wherein the keyboard is in proximity to the exciter/receiver.
Claim 19
Dependent Claim
99 words
The wireless keyboard system of claim 16 wherein the keyboard further comprises: a first circuit that is capable of obtaining a closed circuit configuration and an open circuit configuration; at least one of an electrostatic antenna and an electromagnetic antenna; a code storing circuit that stores a code; and wherein one of the plurality of manually actuated elements is operable to place the first circuit in the closed configuration and to couple the at least one of an electrostatic antenna and electromagnetic antenna to produce a pulse code signal corresponding to the code stored in the code storing circuit.
Claim 20
Dependent Claim
27 words
The wireless keyboard system of claim 16 wherein the keyboard is mounted on a wall and the exciter/receiver is mounted adjacent an opposite side of the wall.
Claim 21
Dependent Claim
28 words
The wireless keyboard system of claim 16 wherein the keyboard is mounted in a housing and the housing is configured to rest on a surface of the exciter/receiver.
Claim 22
Dependent Claim
27 words
The wireless keyboard system of claim 16 wherein the keyboard is mounted on a wall and the exciter/receiver is mounted on the same side of the wall.
Claim 23
Independent Claim
103 words
A method for retrofitting a wireless keyboard to an existing radio frequency identification system, the method comprising the steps of: a) affixing a keyboard near an existing exciter/receiver; b) powering the keyboard with an excitation field from the existing exciter/receiver, the excitation field being generated by one of electrostatic and electromagnetic radiation; c) generating a response signal with the keyboard, wherein the keyboard comprises: at least one radio frequency identification circuit; and a manually actuated element being coupled to the at least one radio frequency identification circuit such that actuation of the manually actuated element causes the keyboard to produce the response signal.
Claim 24
Independent Claim
103 words
A method for retrofitting a wireless keyboard to an existing radio frequency identification system, the method comprising the steps of: a) affixing a keyboard near an existing exciter/receiver; b) powering the keyboard with an excitation field from the existing exciter/receiver, the excitation field being generated by one of electrostatic and electromagnetic radiation; c) generating a response signal with the keyboard, wherein the keyboard comprises: at least one radio frequency identification circuit; and a manually actuated element being coupled to the at least one radio frequency identification circuit such that actuation of the manually actuated element causes the keyboard to produce the response signal.
Claim 25
Dependent Claim
26 words
The method of claim 21 wherein the keyboard is mounted on a wall and the existing exciter/receiver is mounted adjacent an opposite side of the wall.
Claim 26
Dependent Claim
25 words
The method of claim 21 wherein the keyboard has a housing and the housing is configured to rest on a surface of the existing exciter/receiver.
Claim 27
Dependent Claim
26 words
The method of claim 21 wherein the keyboard is mounted on a wall and the existing exciter/receiver is mounted on a same side of the wall.
Claim 28
Dependent Claim
21 words
The method of claim 21 wherein the manually actuated element comprises one of a numeric button, alphabetic button and alphanumeric button.
References Cited (Backward Citations)
US5009227A
Cited
US5406273A
Cited
US5870033A
Cited
US5920308A
Cited
US5859599A
Cited
US5925110A
Cited
US5861822A
Cited
US5955975A
Cited
US5977886A
Cited
US5949335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-17 | 2004-04-17 | 2004-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-17 | 2008-04-17 | 2008-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-17 | 2012-04-17 | 2012-10-17 | $7700.00 | Window Closed / Lapsed |