Patent US4843385A successfully refreshed from Google Patents.
US4843385A
Expired / Lapsed
US
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Electronic lock system for a two-way radio
Assignee: Motorola Solutions Inc
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Filing: 1988-05-19
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Granted: 1989-06-27
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Expires: 2008-05-19
Abstract
Abstract An electronic lock system for a two-way radio. The radio is locked by entering a security code. While locked, the keypad is disabled and cannot be used. In order to unlock the keypad, the proper three-digit code must be entered. If an improper code is entered, the radio automatically transmits a message to indicate the identity of the radio and that an improper code has been entered.
Inventors
- 👤 Jaime A. Borras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:41
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/72; H04M1/724; G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00674; G07C9/0069; H04M1/66; H04M1/667; H04M1/67; H04M1/673; H04W; H04W88/00; H04W88/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A two-way radio for use in a radio communication system, the radio having a receiver and a transmitter means and including an electronic lock system comprising: keypad means for entering a security code for selectively locking and unlocking the radio, memory means for retaining a programmed security code and radio identity information, means, operatively connected to the keypad means and the memory means, for comparing the entered security code with the programmed security code, wherein when the radio is locked and the entered and programmed security codes match, the radio unlocks and when the codes do not match, the radio transmitter means is actuated to transmit a message including the radio identity information and indicating that an improper code has been entered.
Claim 2
Dependent Claim
122 words
A two-way radio for use in a radio communication system, the radio having a receiver and a transmitter means and including an electronic lock system comprising: keypad means for entering a security code for selectively locking and unlocking the radio, memory means for retaining a programmed security code and radio identity information, means, operatively connected to the keypad means and the memory means, for comparing the entered security code with the programmed security code, wherein when the radio is locked and the entered and programmed security codes match, the radio unlocks and when the codes do not match, the radio transmitter means is actuated to transmit a message including the radio identity information and indicating that an improper code has been entered.
Claim 3
Dependent Claim
13 words
The electronic lock of claim 1 wherein the programmed security code is preprogrammed.
Claim 4
Dependent Claim
17 words
The electronic lock system of claim 1 wherein the means for comparing said codes comprises a microprocessor.
Claim 5
Dependent Claim
14 words
The electronic lock system of claim 3, wherein the memory means comprises an EEPROM.
Claim 6
Dependent Claim
14 words
The electronic lock system of claim 4, wherein the radio is a trunked radio.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |