US4786145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal antidazzle mirror
Assignee: Tokai Rika Co Ltd
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Filing: 1986-06-20
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Granted: 1988-11-22
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Expires: 2006-06-20
Abstract
Abstract A liquid crystal antidazzle mirror for supplying a power to liquid crystal drive control circuit when a key plate is inserted into a key cylinder which comprises a key position detecting switch for detecting that the key plate is inserted into the key cylinder, and an initializing circuit for initializing the liquid crystal drive control circuit to either special mode of predetermined antidazzle or dazzle state upon receiving a detection signal of the key position detecting switch. Thus, the antidazzle mirror can automatically initialize the antidazzle mirror to either special mode of a predetermined antidazzle and dazzle states when power is supplied from a battery.
Inventors
- 👤 Hiroshi Demura
- 👤 Akira Kawahashi
- 👤 Yasuo Ohyama
- 👤 Sadao Kokubu
- 👤 Kouji Takizawa
- 👤 Shigeru Iguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:12
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/08; B60R1/083; B60R1/088
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A liquid crystal antidazzle mirror having a key position detecting switch for supplying power to a liquid crystal drive control circuit when a key plate is inserted into the key cylinder, the mirror comprising: an initializing circuit having a preset capacitor and a preset resistor connected between the key position detecting switch and the liquid crystal drive control circuit for initializing the liquid crystal drive control circuit to a preselected one of predetermined antidazzle and dazzle states upon receiving a detection signal of the key position detection switch.
Claim 2
Dependent Claim
88 words
A liquid crystal antidazzle mirror having a key position detecting switch for supplying power to a liquid crystal drive control circuit when a key plate is inserted into the key cylinder, the mirror comprising: an initializing circuit having a preset capacitor and a preset resistor connected between the key position detecting switch and the liquid crystal drive control circuit for initializing the liquid crystal drive control circuit to a preselected one of predetermined antidazzle and dazzle states upon receiving a detection signal of the key position detection switch.
Claim 3
Dependent Claim
24 words
The liquid crystal antidazzle mirror according to claim 1, wherein said preselected one of the predetermined antidazzle and dazzle states is the dazzle state.
Claim 4
Dependent Claim
24 words
The liquid crystal antidazzle mirror according to claim 1, wherein said preselected one of the predetermined antidazzle and dazzle states is the antidazzle state.
Claim 5
Dependent Claim
22 words
The liquid crystal antidazzle mirror according to claim 1, wherein said key position detecting switch is associated integrally with the key cylinder.
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) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |