|Publication number||WO1982002448 A1|
|Publication date||22 Jul 1982|
|Filing date||14 Dec 1981|
|Priority date||9 Jan 1981|
|Also published as||EP0069143A1|
|Publication number||PCT/1981/1663, PCT/US/1981/001663, PCT/US/1981/01663, PCT/US/81/001663, PCT/US/81/01663, PCT/US1981/001663, PCT/US1981/01663, PCT/US1981001663, PCT/US198101663, PCT/US81/001663, PCT/US81/01663, PCT/US81001663, PCT/US8101663, WO 1982/002448 A1, WO 1982002448 A1, WO 1982002448A1, WO 8202448 A1, WO 8202448A1, WO-A1-1982002448, WO-A1-8202448, WO1982/002448A1, WO1982002448 A1, WO1982002448A1, WO8202448 A1, WO8202448A1|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Non-Patent Citations (1), Referenced by (60), Classifications (11), Legal Events (2)|
|External Links: Patentscope, Espacenet|
A REARVIEW MIRROR HAVING AN ELECTRONIC INSTRUMENT DISPLAY
This invention relates to a novel rearview mirror which incorporates into it all or most of the instrument readouts desired in automobiles, trucks, or other similar vehicles. Electronic components, such as microprocessors and LEDs, are mounted behind the usual mirror for the vehicle. Signals are displayed through unsilvered portions of the mirror.
In Canadian Patent 1,063,695, Litman discloses a rearview mirror for a motor vehicle which incorporates repeater lamps connected to the direction indicator system for the vehicle. This arrangement provides greater encouragement for a driver to use the rearview mirror and direction indicators, thereby reducing automobile accidents. Litman also discloses means to prevent the repeater lamps from dazzling the driver in low levels of general light.
The Litman mirror is a safety advance which merely brushes the surface of available alterations to the interior of a vehicle. Traditionally, automotive instruments have been located in the dashboard about the steering column. The practice arose out of necessity for mounting instruments where they would be visible and rigidly attached. However, continued location in this area hinders safety. The instruments generally are outside the driver's peripheral vision. To see them, the driver must take his or her eyes off the road, at least for an instant. The Litman patent discloses that turn signal indicator lamps can be placed behind the mirror reflective surface. However, the patent does not teach the need for multiple conventional dashboard instrumentation at this more desirable eye level location. As highl ighted at pages 45-48 of the De cemb e r , 1980, edition of Radio-Electronics, electronics are quickly replacing mechanical and electromechanical instrumentation in a dashboard. Much more information is available in easily read displays, thanks to these advances. However, it is recognized that the displays are still located out of the driver's field of view. Hope lies with heads-up displays used in military jet aircraft. By moving the readouts to the rearview mirror, the desired result may easily be achieved today.
Disclosure of Invention
A novel feature of this invention is its incorpor- ation of an electronic instrument display for travel infor- mation, such as speed, mileage, or fuel, within a rearview mirror to bring the display into the peripheral vision of the driver while he or she looks straight ahead and to remove the clutter from about the steering column so that additional safety improvements can be made to the dashboar area. Preferably, the mirror contains all the essentia components for the several readouts commonly 'housed in the dashboard. Microprocessors are small enough today to fit within a mirror housing. Sensors about the vehicle need be the only devices outside the mirror. Alternatively, the mirror may have only the readout electronics, such as LED's, with the processing devices mounted elsewhere in the vehicle.
The mirror has a housing which is attachable to the vehicle, either to the frame or to the windshield. The housing holds a mirror and several instrument displays, such as odometers, speedometers, fuel gauges, systems warnings, and turn signal indicators. Preferably the readouts are placed behind unsilvered portions about the periphery of the mirror. A microprocessor preferably is mounted in the housing to process signals and to display the information on the readouts. Means for electrical communication run from the electronic components in the housing to the vehicle. For mirrors glued to the windshield, the means for communication include a plurality of wires encapsulated in a transparent film, such as Mylar, which is glued to the windshield also . Conventional wiring processors and sensors are found in the vehicle frame. The mirror may also have trip log function readouts or a common readout with switches for the various functions.
These and other novel features of the present invention will be apparent from the following description, which is given by way of example of a preferred embodiment.
Brief Description of the Drawings
Figure 1 is a schematic of a rearview mirror having an electronic instrument display.
Figure 2 is a partially sectional schematic similar to Figure 1 showing a microprocessor mounted behind the partially silvered mirror.
Best Mode for Carrying Out the Invention
Referring now to Fig. 1, a rearview mirror which incorporates the novel features of this invention is schematically shown. The mirror has a housing 10 which is attachable by suitable means 11 to the frame or windshield of the vehicle. Means for electrical communication 12 extend from the electrical components in the mirror to suitable wiring in the vehicle, which runs to the ordinary sensors for travel information. Preferably, this means 12 includes a plurality of connecting wires of small diameter, arranged in ribbon form and encapsulated in a transparent plastic film (as shown in Fig. 2). Mounted in the housing 10 is a mirror 13 which has unsilvered portions. Signal lights, repeater lamps, or LEDs mounted behind the unsilvered portions emit light which is visible through the mirror 13. Preferably, these unsilvered portions are arranged about the periphery of the mirror 13 so that they do not impair its ordinary function. Alternately, the readouts may be placed around the housing of the mirror or on the glass of the mirror. As an example of the display possible. Fig. shows a digital speedometer 14 in the lower lefthand corner, an electronic fuel gauge 15 in the upper lefthand corner, digital odometer 16 in the upper center, systems warning lights 17, such as battery, oil, brakes, or seatbelts, along the right edge, and a digital readout 18 in the lower center. Arrayed along the bottom of the mirror are separately identified push-button switches 19 controlling a micropro- cessor 20 (Fig. 2) to permit display of various "trip log" functions in the readout 18. Preferably, the switches are lighted so that they are identifiable at night. The odometer 16, speedometer 14, and fuel gauge 15 may have individual microprocessors if space permits, or all of the readouts in the mirror may share one microprocessor 20 (Fig. 2). The intensity of light from the displays is controlled with a screw dimmer switch 23. Furthermore, a turn signal indicator 21 and a hi-low beam indicator 22 may be placed at a convenient place in the mirror. The microprocessors might just as easily be placed elsewhere in the vehicle, with only the readout components, such as the LEDs, in the mirror.
The odometer 16 preferably features a permanent semiconductor memory capable of extended data retention even with power removed. Thus, if the battery fails, the accumulated mileage will not be lost.
Incorporated 'by reference as part of this description, M. B. Weinsteins's article entitled "Electronics your next car," Radio-Electronics, December, 1980, pp. 45-48, discusses the state of the art in electronic displays as well as the numerous options available. Especially relevant is the discussion of "trip log" functions, such as distance traveled, elapsed time, average speed, estimated time of arrival, and distance to destination.
The mirror may also incorporate a clock, if desired. The clock may be made a part of the "trip log" functions whereby display of the time would appear only on selection, or a separate digital readout may be included in the mirror. In some circumstances, microtransmitters and microreceivers may be used to communicate between the mirror's readouts and the vehicle's sensors. Medical technology has recently developed these small components, although their use should be avoided if interference causes the transmission to be garbled.
Those skilled in the art will recognize numerous modifications to the preferred embodiment shown and described. Therefore, this invention should not be limited unless limitation is necessary due to the prior art or the nature and spirit of the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|GB2048532A *||Title not available|
|US4031363 *||17 May 1976||21 Jun 1977||General Time Corporation||Display apparatus for automotive vehicles|
|US4035764 *||21 Apr 1975||12 Jul 1977||Nippon Soken, Inc.||Combination meter for automobile|
|US4109235 *||4 May 1976||22 Aug 1978||Regie Nationale Des Usines Renault||Electronic-display instrument panels for automotive vehicles|
|1||*||Mitsubishi Denki Giho: Vol. 54, No. 10, pp. 29-32, issued 1980, OSAMU SHIMIZU et al, A Liquid-Crystal Automotive Instrument Panel|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|EP0635395A1 *||25 May 1994||25 Jan 1995||HOHE GmbH & Co. KG||Information unit in a motor vehicle|
|EP0667254A1 *||3 Feb 1995||16 Aug 1995||Donnelly Corporation||Vehicle information display|
|EP0937601A3 *||18 Feb 1999||8 Nov 2000||Donnelly Corporation||Rearview mirror assembly incorporating vehicle information display|
|EP1103421A3 *||13 Nov 2000||2 Jan 2004||Donnelly Corporation||Rearview mirror assembly with modular display|
|EP2996101A1 *||12 Sep 2014||16 Mar 2016||Continental Automotive GmbH||Driver assistance system, method for assisting a driver during a parking manoeuvre and program product|
|US5576687 *||10 Feb 1994||19 Nov 1996||Donnelly Corporation||Vehicle information display|
|US5631638 *||8 Jul 1994||20 May 1997||Hohe Gmbh & Co.Kg.||Information system in a motor vehicle|
|US5708410 *||10 Sep 1996||13 Jan 1998||Donnelly Corporation||Vehicle information display|
|US5820245 *||12 Apr 1996||13 Oct 1998||Donnelly Corporation||Rearview mirror assembly|
|US5871251 *||14 Mar 1996||16 Feb 1999||Prince Corporation||Visor display|
|US5927792 *||2 Jul 1998||27 Jul 1999||Prince Corporation||Visor display|
|US6000823 *||12 Oct 1998||14 Dec 1999||Donnelly Mirrors Limited||Rearview mirror assembly|
|US6167255 *||29 Jul 1998||26 Dec 2000||@Track Communications, Inc.||System and method for providing menu data using a communication network|
|US6183119||6 Aug 1999||6 Feb 2001||Donnelly Corporation||Lighted vehicular mirror assembly|
|US6222460||30 Jun 2000||24 Apr 2001||Donnelly Corporation||Interior rearview mirror system incorporating a supplemental inflatable restraint system status information display|
|US6326900||6 Feb 2001||4 Dec 2001||Donnelly Corporation||Interior rearview mirror system incorporating a light-emitting information display|
|US6329925||24 Nov 1999||11 Dec 2001||Donnelly Corporation||Rearview mirror assembly with added feature modular display|
|US6366213||11 Dec 2000||2 Apr 2002||Donnelly Corporation||Rearview mirror assembly incorporating electrical accessories|
|US6405033||29 Jul 1998||11 Jun 2002||Track Communications, Inc.||System and method for routing a call using a communications network|
|US6428172||24 Nov 1999||6 Aug 2002||Donnelly Corporation||Rearview mirror assembly with utility functions|
|US6483438||14 Nov 2001||19 Nov 2002||Donnelly Corporation||Rearview mirror assembly incorporating electrical accessories|
|US6501387||19 Nov 2001||31 Dec 2002||Donnelly Corporation||Rearview mirror assembly with added feature modular display|
|US6535743||29 Jul 1998||18 Mar 2003||Minorplanet Systems Usa, Inc.||System and method for providing directions using a communication network|
|US6642851||15 Nov 2001||4 Nov 2003||Donnelly Corporation||Interior rearview mirror system incorporating a directional information display|
|US6648477||5 Jul 2001||18 Nov 2003||Donnelly Corporation||Rearview mirror assembly with information display|
|US6756912||24 Dec 2002||29 Jun 2004||Donnelly Corporation||Information display system for a vehicle|
|US6774810||15 Nov 2002||10 Aug 2004||Donnelly Corporation||Rearview mirror assembly incorporating supplemental inflatable restraint system status information display|
|US6857194||16 Sep 2003||22 Feb 2005||Johnson Controls Technology Company||Vehicle compass system with continuous automatic calibration|
|US6870655||5 Jun 2000||22 Mar 2005||Gentex Corporation||Rearview mirror with display|
|US6902284||2 Dec 2002||7 Jun 2005||Donnelly Corporation||Interior rearview mirror system including a pendent accessory|
|US7012543||6 Aug 2004||14 Mar 2006||Donnelly Corporation||Rearview mirror assembly incorporating accessories|
|US7012727||22 Sep 2003||14 Mar 2006||Donnelly Corporation||Rearview mirror assembly with utility functions|
|US7224324||26 Mar 2001||29 May 2007||Donnelly Corporation||Interactive automotive rearvision system|
|US7427150||12 Sep 2003||23 Sep 2008||Gentex Corporation||Rearview mirror assembly including a multi-functional light module|
|US7468651||7 Mar 2006||23 Dec 2008||Donnelly Corporation||Interior mirror system|
|US7488080||28 Jun 2004||10 Feb 2009||Donnelly Corporation||Information display system for a vehicle|
|US8833987||8 Oct 2012||16 Sep 2014||Donnelly Corporation||Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle|
|US8884788||30 Aug 2013||11 Nov 2014||Donnelly Corporation||Automotive communication system|
|US8908039||4 Jun 2012||9 Dec 2014||Donnelly Corporation||Vehicular video mirror system|
|US9014966||14 Mar 2014||21 Apr 2015||Magna Electronics Inc.||Driver assist system for vehicle|
|US9019091||17 Mar 2011||28 Apr 2015||Donnelly Corporation||Interior rearview mirror system|
|US9045091||15 Sep 2014||2 Jun 2015||Donnelly Corporation||Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle|
|US9073491||4 Aug 2014||7 Jul 2015||Donnelly Corporation||Exterior rearview mirror assembly|
|US9090211||19 May 2014||28 Jul 2015||Donnelly Corporation||Variable reflectance mirror reflective element for exterior mirror assembly|
|US9221399||7 Nov 2014||29 Dec 2015||Magna Mirrors Of America, Inc.||Automotive communication system|
|US9278654||20 Apr 2012||8 Mar 2016||Donnelly Corporation||Interior rearview mirror system for vehicle|
|US9315151||3 Apr 2015||19 Apr 2016||Magna Electronics Inc.||Driver assist system for vehicle|
|US9341914||27 Jul 2015||17 May 2016||Donnelly Corporation||Variable reflectance mirror reflective element for exterior mirror assembly|
|US9352623||17 Feb 2014||31 May 2016||Magna Electronics Inc.||Trailer hitching aid system for vehicle|
|US9376061||23 Apr 2015||28 Jun 2016||Donnelly Corporation||Accessory system of a vehicle|
|US9481306||16 Dec 2015||1 Nov 2016||Donnelly Corporation||Automotive communication system|
|US9545883||6 Jul 2015||17 Jan 2017||Donnelly Corporation||Exterior rearview mirror assembly|
|US9557584||12 Aug 2013||31 Jan 2017||Donnelly Corporation||Rearview mirror assembly for vehicle|
|US9694749||23 May 2016||4 Jul 2017||Magna Electronics Inc.||Trailer hitching aid system for vehicle|
|US9694753||1 Jun 2015||4 Jul 2017||Magna Mirrors Of America, Inc.||Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle|
|US9758102||30 Jun 2017||12 Sep 2017||Magna Mirrors Of America, Inc.||Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle|
|US9783114||5 Dec 2014||10 Oct 2017||Donnelly Corporation||Vehicular video mirror system|
|US9783115||24 Jan 2017||10 Oct 2017||Donnelly Corporation||Rearview mirror assembly for vehicle|
|US9809168||18 Apr 2016||7 Nov 2017||Magna Electronics Inc.||Driver assist system for vehicle|
|US9809171||23 Apr 2015||7 Nov 2017||Magna Electronics Inc.||Vision system for vehicle|
|International Classification||B60K35/00, B60R1/12, G07C5/08|
|Cooperative Classification||B60R1/12, G07C5/0816, B60R2001/1215, B60K35/00, B60R2001/1246|
|European Classification||B60R1/12, G07C5/08P, B60K35/00|
|22 Jul 1982||AK||Designated states|
Designated state(s): JP
|22 Jul 1982||AL||Designated countries for regional patents|
Designated state(s): DE FR GB SE