# US 10,308,180 B2 · Rear backup system for a vehicle

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- Number: US 10,308,180 B2
- Document ID: US10308180B2
- Status: Granted
- Kind: B2
- Application number: 16/203,953
- Filed: 2018-11-29
- Published: 2019-03-28
- Granted: 2019-06-04
- Earliest claimed: 2004-09-14
- Assignees: Magna Electronics Inc.
- Applicants: Magna Electronics Inc.
- Inventors: Lee Karner; Kenneth Schofield; Niall R. Lynam
- Web page: https://patentgrep.com/patent/US10308180B2

## CPC

- B60R 1/08: involving special optical features, e.g. avoiding blind spots {, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors (B60R1/025, B60R1/10 take precedence)}
- B29C 45/0017: {moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges}
- B29C 45/14639: {for obtaining an insulating effect, e.g. for electrical components}
- B29C 45/14754: {being in movable or releasable engagement with the coating, e.g. bearing assemblies}
- B29C 45/1671: {with an insert}
- B60C 9/00: Reinforcements or ply arrangement of pneumatic tyres (inserts having reinforcing means B60C5/08; bead structure, e.g. turnup or overlap construction, B60C15/00)
- B60Q 9/008: {for anti-collision purposes}
- B60R 1/04: mounted inside vehicle {(B60R1/025, B60R1/08 take precedence)}
- B60R 1/06: mounted on vehicle exterior {(B60R1/025, B60R1/08 take precedence)}
- B60R 1/12: Mirror assemblies combined with other articles, e.g. clocks
- B60R 1/23: with a predetermined field of view
- B60R 11/04: Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
- G06T 7/13: Edge detection
- G06T 7/70: Determining position or orientation of objects or cameras (camera calibration G06T7/80)
- G06V 20/58: Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
- G08G 1/165: {for passive traffic, e.g. including static obstacles, trees}
- G08G 1/166: {for active traffic, e.g. moving vehicles, pedestrians, bikes}
- G08G 1/167: {Driving aids for lane monitoring, lane changing, e.g. blind spot detection}
- G09G 3/001: {using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP)}
- G09G 3/346: {based on modulation of the reflection angle, e.g. micromirrors (micromirrors devices per se G02B26/0833)}
- G09G 5/026: {Control of mixing and/or overlay of colours in general (G09G5/022 and G09G5/024 take precedence)}
- H04N 7/181: {for receiving images from a plurality of remote sources}
- H04N 7/183: {for receiving images from a single remote source}
- B29L 2011/0058: {Mirrors}
- B29L 2031/30: Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)}
- B60R 1/30: providing vision in the non-visible spectrum, e.g. night or infrared vision
- B60R 2001/1215: {with information displays}
- B60R 2001/1223: {with sensors or transducers}
- B60R 2001/1253: {with cameras, video cameras or video screens}
- B60R 2001/1269: {with sun visors}
- B60R 2011/0033: {Rear-view mirrors}
- B60R 2300/105: using multiple cameras
- B60R 2300/308: by overlaying the real scene, e.g. through a head-up display on the windscreen
- B60R 2300/8026: in addition to a rear-view mirror system
- B60R 2300/8066: for monitoring rearward traffic
- B60R 2300/808: for facilitating docking to a trailer
- B60R 2300/8093: for obstacle warning
- G06T 2207/10016: Video; Image sequence
- G06T 2207/30232: Surveillance
- G06T 2207/30261: Obstacle
- G09G 2300/023: Display panel composed of stacked panels
- G09G 2300/0456: with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
- G09G 2340/12: Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
- G09G 2380/10: Automotive applications
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A rear backup system for a vehicle includes a rear backup video camera and a display device including a video display screen operable to display video images viewable by a driver of the vehicle. When a transmission of the vehicle is shifted into reverse gear to commence a backup event, video backup images derived from image data captured by the rear backup video camera are displayed at the video display screen of the display device. Display of the video backup images continues after shifting of the transmission out of reverse gear. Display of the video backup images at the video display screen ceases once a threshold condition is met. The threshold condition may include a threshold period of time elapsing after the transmission has been shifted out of reverse gear. The rear backup video camera continues to capture image data at least until the threshold condition is met.

## Claims

### Claim 1

A rear backup system for a vehicle, said rear backup system comprising:
a rear backup video camera at a rear portion of a vehicle equipped with said rear backup system;
said rear backup video camera having a rearward field of view external of the equipped vehicle;
said rear backup video camera operable to capture image data;
a display device comprising a video display screen operable to display video images viewable by a driver of the equipped vehicle;
wherein, responsive to a transmission of the equipped vehicle being shifted into reverse gear to commence a backup event, video backup images derived from image data captured by said rear backup video camera are displayed at said video display screen of said display device;
wherein display of the video backup images at said video display screen continues after shifting of the vehicle transmission out of reverse gear;
wherein display of the video backup images at said video display screen ceases once a threshold condition is met;
wherein the threshold condition comprises a threshold period of time elapsing after the vehicle transmission has been shifted out of reverse gear, the threshold period of time constituting a linger time no longer than 10 seconds; and
wherein said rear backup video camera continues to capture image data at least until the linger time elapses.

### Claim 2 (depends on 1)

The rear backup system of claim 1, wherein the linger time is longer than 5 seconds.

### Claim 3 (depends on 2)

The rear backup system of claim 2, wherein an instruction is displayed with the video backup images to assist the driver during the backup event.

### Claim 4 (depends on 2)

The rear backup system of claim 2, wherein an icon is displayed with the video backup images to assist the driver during the backup event.

### Claim 5 (depends on 2)

The rear backup system of claim 2, wherein a marking is displayed with the video backup images to assist the driver during the backup event.

### Claim 6 (depends on 2)

The rear backup system of claim 2, wherein an indicia is displayed with the video backup images to assist the driver during the backup event.

### Claim 7 (depends on 2)

The rear backup system of claim 2, wherein the backup event comprises hitching a trailer to a trailer hitch of the equipped vehicle.

### Claim 8 (depends on 2)

The rear backup system of claim 2, wherein said video display screen of said display device comprises a backlit thin film transistor LCD video display screen.

### Claim 9 (depends on 8)

The rear backup system of claim 8, wherein said backlit thin film transistor LCD video display screen is backlit by a laser.

### Claim 10 (depends on 8)

The rear backup system of claim 8, wherein said backlit thin film transistor LCD video display screen is backlit by at least one white light emitting light emitting diode.

### Claim 11 (depends on 2)

The rear backup system of claim 2, wherein said video display screen of said display device comprises an organic light emitting diode (OLED) video display screen.

### Claim 12 (depends on 2)

The rear backup system of claim 2, wherein said display device comprises a microelectromechanical scanner.

### Claim 13 (depends on 2)

The rear backup system of claim 2, wherein said display device is disposed at an interior rearview mirror assembly of the equipped vehicle, and wherein said display device displays video backup images through a mirror reflective element of said interior rearview mirror assembly for viewing by the driver of the equipped vehicle.

### Claim 14 (depends on 13)

The rear backup system of claim 13, wherein said interior rearview mirror assembly comprises a molded plastic mounting arm having at least one ball member at at least one end thereof and having electrical conducting elements extending therethrough, and wherein a mirror mounting portion is molded over said ball member, and wherein said mounting arm comprises a mounting arm polymeric material having a first linear mold shrinkage factor and a first flexural modulus and wherein said mirror mounting portion comprises a mirror mounting polymeric material having a second linear mold shrinkage factor and a second flexural modulus, and wherein said second linear mold shrinkage factor is greater than said first linear mold shrinkage factor and wherein said second flexural modulus is lower than said first flexural modulus.

### Claim 15 (depends on 2)

The rear backup system of claim 2, wherein the equipped vehicle comprises an interior rearview mirror assembly, and wherein said interior rearview mirror assembly comprises a mirror reflective element, and wherein said mirror reflective element comprises a transflective mirror reflector, and wherein said video display screen of said display device comprises a backlit thin film transistor LCD video display screen, and wherein said display device is disposed at said interior rearview mirror assembly behind said transflective mirror reflector, and wherein the displayed video backup images are viewable through said transflective mirror reflector of said mirror reflective element by the driver of the equipped vehicle, and wherein said interior rearview mirror assembly comprises an electrochromic mirror reflective element comprising a front substrate having first and second surfaces and a rear substrate having third and fourth surfaces, and wherein an electrochromic medium is disposed between said second surface of said front substrate and said third surface of said rear substrate, and wherein said transflective mirror reflector is disposed at said third surface of said rear substrate.

### Claim 16 (depends on 2)

The rear backup system of claim 2, wherein said display device is disposed at an interior rearview mirror assembly of the equipped vehicle, and wherein, when the transmission of the equipped vehicle is shifted into reverse gear, said video display screen of said display device slides out laterally from a retracted non-viewing position behind a mirror reflective element of said interior rearview mirror assembly to an extended viewing position where the displayed video backup images are viewable by the driver of the equipped vehicle, and wherein said video display screen remains its extended position until the linger time elapses, and wherein after the linger time elapse, said video display screen of said display device slides laterally back to its retracted non-viewing position behind the mirror reflective element of said interior rearview mirror assembly.

### Claim 17

A rear backup system for a vehicle, said rear backup system comprising:
a rear backup video camera at a rear portion of a vehicle equipped with said rear backup system;
said rear backup video camera having a rearward field of view external of the equipped vehicle;
said rear backup video camera operable to capture image data;
a display device comprising a video display screen operable to display video images viewable by a driver of the equipped vehicle;
wherein, responsive to a transmission of the equipped vehicle being shifted into reverse gear to commence a backup event, video backup images derived from image data captured by said rear backup video camera are displayed at said video display screen of said display device;
wherein display of the video backup images at said video display screen continues after shifting of the vehicle transmission out of reverse gear;
wherein display of the video backup images at said video display screen ceases once a threshold condition is met;
wherein the threshold condition comprises a forward motion speed of the equipped vehicle exceeding a threshold speed of forward motion after the vehicle transmission has been shifted out of reverse gear and into forward gear;
wherein the threshold speed of forward motion is at least 3 miles per hour; and
wherein said rear backup video camera continues to capture image data at least up to when the threshold condition is met.

### Claim 18 (depends on 17)

The rear backup system of claim 17, wherein the threshold speed of forward motion is 10 miles per hour.

### Claim 19 (depends on 17)

The rear backup system of claim 17, wherein forward motion speed of the equipped vehicle is sensed by a speed sensor of the equipped vehicle.

### Claim 20 (depends on 19)

The rear backup system of claim 19, wherein the speed sensor of the equipped vehicle comprises a wheel speed sensor.

### Claim 21 (depends on 19)

The rear backup system of claim 19, wherein the speed sensor of the equipped vehicle comprises a wheel speed encoder.

### Claim 22 (depends on 17)

The rear backup system of claim 17, wherein an instruction is displayed with the video backup images to assist the driver during the backup event.

### Claim 23 (depends on 17)

The rear backup system of claim 17, wherein an icon is displayed with the video backup images to assist the driver during the backup event.

### Claim 24 (depends on 17)

The rear backup system of claim 17, wherein a marking is displayed with the video backup images to assist the driver during the backup event.

### Claim 25 (depends on 17)

The rear backup system of claim 17, wherein an indicia is displayed with the video backup images to assist the driver during the backup event.

### Claim 26 (depends on 17)

The rear backup system of claim 17, wherein the backup event comprises hitching a trailer to a trailer hitch of the equipped vehicle.

### Claim 27 (depends on 17)

The rear backup system of claim 17, wherein said video display screen of said display device comprises a backlit thin film transistor LCD video display screen.

### Claim 28 (depends on 17)

The rear backup system of claim 17, wherein said video display screen of said display device comprises an organic light emitting diode (OLED) video display screen.

### Claim 29

A rear backup system for a vehicle, said rear backup system comprising:
a rear backup video camera at a rear portion of a vehicle equipped with said rear backup system;
said rear backup video camera having a rearward field of view external of the equipped vehicle;
said rear backup video camera operable to capture image data;
a display device comprising a video display screen operable to display video images viewable by a driver of the equipped vehicle;
wherein, responsive to a transmission of the equipped vehicle being shifted into reverse gear to commence a backup event, video backup images derived from image data captured by said rear backup video camera are displayed at said video display screen of said display device;
wherein display of the video backup images at said video display screen continues after shifting of the vehicle transmission out of reverse gear;
wherein display of the video backup images at said video display screen ceases once a threshold condition is met;
wherein the threshold condition comprises forward travel of the equipped vehicle exceeding a threshold distance of forward travel after the vehicle transmission has been shifted out of reverse gear and into forward gear;
wherein the threshold distance of forward travel is at least 10 feet; and
wherein said rear backup video camera continues to capture image data at least up to when the threshold condition is met.

### Claim 30 (depends on 29)

The rear backup system of claim 29, wherein the threshold distance of forward travel is 20 feet or less.

### Claim 31 (depends on 29)

The rear backup system of claim 29, wherein the threshold distance of forward travel is at least 20 feet.

### Claim 32 (depends on 29)

The rear backup system of claim 29, wherein the threshold distance of forward travel is 30 feet or less.

### Claim 33 (depends on 32)

The rear backup system of claim 32, wherein an instruction is displayed with the video backup images to assist the driver during the backup event.

### Claim 34 (depends on 32)

The rear backup system of claim 32, wherein an icon is displayed with the video backup images to assist the driver during the backup event.

### Claim 35 (depends on 32)

The rear backup system of claim 32, wherein a marking is displayed with the video backup images to assist the driver during the backup event.

### Claim 36 (depends on 32)

The rear backup system of claim 32, wherein an indicia is displayed with the video backup images to assist the driver during the backup event.

### Claim 37 (depends on 32)

The rear backup system of claim 32, wherein the backup event comprises hitching a trailer to a trailer hitch of the equipped vehicle.

### Claim 38 (depends on 32)

The rear backup system of claim 32, wherein said video display screen of said display device comprises a backlit thin film transistor LCD video display screen.

### Claim 39 (depends on 32)

The rear backup system of claim 32, wherein said video display screen of said display device comprises an organic light emitting diode (OLED) video display screen.