JPS6474142A - Lighting system for vehicle mounted device - Google Patents

Lighting system for vehicle mounted device

Info

Publication number
JPS6474142A
JPS6474142A JP62230557A JP23055787A JPS6474142A JP S6474142 A JPS6474142 A JP S6474142A JP 62230557 A JP62230557 A JP 62230557A JP 23055787 A JP23055787 A JP 23055787A JP S6474142 A JPS6474142 A JP S6474142A
Authority
JP
Japan
Prior art keywords
constitution
circuit
engine
voltage
illumination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62230557A
Other languages
Japanese (ja)
Other versions
JPH0735139B2 (en
Inventor
Hiroshi Tanaka
Arifumi Eto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kenwood KK
Original Assignee
Kenwood KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kenwood KK filed Critical Kenwood KK
Priority to JP62230557A priority Critical patent/JPH0735139B2/en
Publication of JPS6474142A publication Critical patent/JPS6474142A/en
Publication of JPH0735139B2 publication Critical patent/JPH0735139B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To facilitate control in case of using a vehicle-mounted device at night simplified in its constitution by detecting a drop in battery voltage, when an engine is started, and, at the time of this detection, closing a switching means, provided in an illuminating power supply line, for the predetermined fixed time. CONSTITUTION:For nighttime use of an automobile, by turning an ignition key, when an engine switch SW is turned on, a starter motor 36 is driven, cranking an engine. A large motor current is allowed to flow, causing a large load to be applied to a battery 30, and its voltage generates a large drop. Then decreasing charging voltage of a capacitor C1 in a voltage fluctuation detecting circuit 44 turning on a transistor Tr3, a pulse generating circuit 46 operates outputting a pulse signal to a pulse width setter circuit 48. By the constitution thus obtained, an illumination-on control signal is output to an illumination power supply switching circuit 40 over a predetermined width, for instance, 10sec, causing an illumination lamp 42 of an acoustic device 34 to be turned on.
JP62230557A 1987-09-14 1987-09-14 Lighting equipment for in-vehicle equipment Expired - Lifetime JPH0735139B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62230557A JPH0735139B2 (en) 1987-09-14 1987-09-14 Lighting equipment for in-vehicle equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62230557A JPH0735139B2 (en) 1987-09-14 1987-09-14 Lighting equipment for in-vehicle equipment

Publications (2)

Publication Number Publication Date
JPS6474142A true JPS6474142A (en) 1989-03-20
JPH0735139B2 JPH0735139B2 (en) 1995-04-19

Family

ID=16909622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62230557A Expired - Lifetime JPH0735139B2 (en) 1987-09-14 1987-09-14 Lighting equipment for in-vehicle equipment

Country Status (1)

Country Link
JP (1) JPH0735139B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6603857B1 (en) * 1997-07-14 2003-08-05 Entrust Technologies Limited Method and apparatus for controlling release of time sensitive information
US7628472B2 (en) 2003-01-10 2009-12-08 Canon Kabushiki Kaisha Ink-jet recording head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6603857B1 (en) * 1997-07-14 2003-08-05 Entrust Technologies Limited Method and apparatus for controlling release of time sensitive information
US7628472B2 (en) 2003-01-10 2009-12-08 Canon Kabushiki Kaisha Ink-jet recording head
US8083322B2 (en) 2003-01-10 2011-12-27 Canon Kabushiki Kaisha Ink-jet recording head

Also Published As

Publication number Publication date
JPH0735139B2 (en) 1995-04-19

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