US5107244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglarproof device for electronic equipment adapted to be mounted in vehicles
Assignee: Pioneer Corp
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Filing: 1990-03-12
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Granted: 1992-04-21
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Expires: 2010-03-12
Abstract
Abstract A burglarproof device includes an accessory switch detection circuit for detecting ON/OFF states of an accessory switch provided in a vehicle. An accessory switch detection signal is sent to an alarm generation circuit. The alarm generation circuit generates an alarm signal when the accessory switch is in an OFF state. This alarm signal alarms that a detachable electronic equipment adapted to be mounted in vehicles which has been mounted in a vehicle is actually attached to the vehicle. This alarm informs a driver that he forgets detachment of the electronic equipment adapted to be mounted in vehicles, thus preventing burglarly.
Inventors
- 👤 Yoshio Minamide
- 👤 Akio Itoh
- 👤 Masashi Kawamoto
- 👤 Masaaki Watanabe
- 👤 Akira Nagashima
- 👤 Motonori Satoh
- 👤 Takashi Suzuki
- 👤 Yuichi Mineo
- 👤 Takafumi Yuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:13
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/18; G08B21/24
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
118 words
A burglarproof device for electronic equipment adapted to be mounted in vehicles, which is detachably mounted in a vehicle and is supplied with power than an accessory switch, said electronic equipment having an operating panel detachably supported on a cover which is opened and closed, said burglarproof device comprising: accessory switch detection circuit means for detecting ON/OFF states of said accessory switch, and alarm generation circuit means for outputting an alarm signal informing that said electronic equipment adapted to be mounted in a vehicle is in an attached state when said accessory switch is in the OFF state, said alarm generation circuit means including drive circuit means for generating a drive signal for opening and closing said cover.
Claim 2
Dependent Claim
118 words
A burglarproof device for electronic equipment adapted to be mounted in vehicles, which is detachably mounted in a vehicle and is supplied with power than an accessory switch, said electronic equipment having an operating panel detachably supported on a cover which is opened and closed, said burglarproof device comprising: accessory switch detection circuit means for detecting ON/OFF states of said accessory switch, and alarm generation circuit means for outputting an alarm signal informing that said electronic equipment adapted to be mounted in a vehicle is in an attached state when said accessory switch is in the OFF state, said alarm generation circuit means including drive circuit means for generating a drive signal for opening and closing said cover.
Claim 3
Dependent Claim
62 words
A burglarproof device as set forth in claim 1, wherein said alarm generation circuit means further comprises: control circuit means for outputting a control command signal for generation of said alarm signal on the basis of a detection signal from said accessory switch detection circuit means, said drive circuit means outputting said drive signal on the basis of said control command signal.
Claim 4
Dependent Claim
60 words
A burglarproof device as set forth in claim 1, wherein said alarm generation circuit means comprises timer means for outputting an alarm signal when a door on the driver's side of an automotive vehicle in which said electronic equipment adapted to be mounted in a vehicle is mounted is opened after said accessory switch is brought into an OFF state.
Claim 5
Dependent Claim
38 words
A burglarproof device as set forth in claim 1, wherein said alarm generation circuit means further comprises timer means for stopping said alarm signal after a predetermined time passes from the time when said alarm signal is generated.
Claim 6
Dependent Claim
19 words
A burglarproof device as set forth in claim 1, which further comprises indication means for indicating said alarm signal.
Claim 7
Dependent Claim
18 words
A burglarproof device as set forth in claim 5, wherein said indication means comprises alarm tone generator means.
Claim 8
Dependent Claim
51 words
A burglarproof device as set forth in claim 6, wherein said operating panel includes an operating push-button adapted to generate a beep tone at the time of depressing operation, said alarm tone generator means being constructed to generate an alarm tone having a frequency different from that of said beep tone.
Claim 9
Dependent Claim
20 words
A burglarproof device as set forth in claim 5, wherein said indication means is comprised of an alarm light generator.
Claim 10
Dependent Claim
37 words
A burglarproof device as set forth in claim 2, wherein said alarm signal is output when the detachable operating panel is mounted on said cover in a state wherein said accessory switch is in the OFF state.
Claim 11
Dependent Claim
115 words
A burglarproof device for electronic equipment, adapted to be mounted in vehicles, which is detachably mounted in a vehicle and is supplied with power through an accessory switch, said burglarproof device comprising: accessory switch detection circuit means for detecting ON/OFF states of said accessory switch, and alarm generation circuit means for outputting an alarm signal informing that said electronic equipment is in an attached state when said accessory switch is in the OFF state, said alarm generation circuit means further comprising: timer means for outputting an alarm signal informing that said electronic equipment is in an attached state after a predetermined time passes from the time when said accessory switch is in an OFF state.
Claim 12
Dependent Claim
115 words
A burglarproof device for electronic equipment, adapted to be mounted in vehicles, which is detachably mounted in a vehicle and is supplied with power through an accessory switch, said burglarproof device comprising: accessory switch detection circuit means for detecting ON/OFF states of said accessory switch, and alarm generation circuit means for outputting an alarm signal informing that said electronic equipment is in an attached state when said accessory switch is in the OFF state, said alarm generation circuit means further comprising: timer means for outputting an alarm signal informing that said electronic equipment is in an attached state after a predetermined time passes from the time when said accessory switch is in an OFF state.
Claim 13
Dependent Claim
116 words
A burglarproof device for electronic equipment, adapted to be mounted in vehicles, which is detachably mounted in a vehicle and is supplied with power through an accessory switch, said burglarproof device comprising: accessory switch detection circuit means for detecting ON/OFF states of said accessory switch, and alarm generation circuit means for outputting an alarm signal informing that said electronic equipment is in an attached state when said accessory switch is in the OFF state, said electronic equipment including an operating panel having an operating push-button adapted to generate a beep tone when depressed, said alarm tone generator means being constructed to generate an alarm tone having a sound volume larger than that of said beep tone.
Claim 14
Dependent Claim
116 words
A burglarproof device for electronic equipment, adapted to be mounted in vehicles, which is detachably mounted in a vehicle and is supplied with power through an accessory switch, said burglarproof device comprising: accessory switch detection circuit means for detecting ON/OFF states of said accessory switch, and alarm generation circuit means for outputting an alarm signal informing that said electronic equipment is in an attached state when said accessory switch is in the OFF state, said electronic equipment including an operating panel having an operating push-button adapted to generate a beep tone when depressed, said alarm tone generator means being constructed to generate an alarm tone having a sound volume larger than that of said beep tone.
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) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |