WO1998043192A1 - In-vehicle screen blanking using global positioning system (gps) speed data - Google Patents

In-vehicle screen blanking using global positioning system (gps) speed data Download PDF

Info

Publication number
WO1998043192A1
WO1998043192A1 PCT/US1998/005737 US9805737W WO9843192A1 WO 1998043192 A1 WO1998043192 A1 WO 1998043192A1 US 9805737 W US9805737 W US 9805737W WO 9843192 A1 WO9843192 A1 WO 9843192A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
screen
speed
message
system
Prior art date
Application number
PCT/US1998/005737
Other languages
French (fr)
Inventor
Robert F. Arnold
William A. Blakeley
Nicholas A. Kominus
Original Assignee
Scientific-Atlanta, Inc.
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
Priority to US82204097A priority Critical
Priority to US08/822,040 priority
Application filed by Scientific-Atlanta, Inc. filed Critical Scientific-Atlanta, Inc.
Publication of WO1998043192A1 publication Critical patent/WO1998043192A1/en

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/09Arrangements for giving variable traffic instructions
    • G08G1/0962Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968Systems involving transmission of navigation instructions to the vehicle
    • G08G1/0969Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in preceding groups
    • G01C21/26Navigation; Navigational instruments not provided for in preceding groups specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/36Input/output arrangements of navigation systems
    • G01C21/3697Input/output arrangements of navigation systems output of additional, non-guidance related information, e.g. low fuel level, fuel efficient driving, gear change, speeding, dangerous curve ahead, slippery road, school zone, speed traps, driving behaviour feedback, advertising, virtual billboards or road signs
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00Details of instruments
    • G01P1/07Indicating devices, e.g. for remote indication
    • G01P1/08Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64Devices characterised by the determination of the time taken to traverse a fixed distance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/52Determining velocity
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/052Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed

Abstract

A method and apparatus for automatically blanking an in-vehicle screen (122) disposed within a vehicle (116), when the speed of the vehicle (116) exceeds a predetermined speed. The screen (122) is restored to display visual information after the screen (122) is blanked when the speed of the vehicle (116) reaches back to lessthan the predetermined speed. The speed of the vehicle (116) is determined from position indicating signals sent by Global Positioning System (GPS) satellites (103, 104, and 106). Determining the speed of the vehicle from GPS position indicating signals can preclude non-compliance with federal or local regulations of commercial carrier vehicles that require in-vehicle screens to be blanked when the speed of the vehicle exceeds the predetermined speed.

Description

IN-VEHICLE SCREEN BLANKING USING GLOBAL POSITIONING SYSTEM (GPS) SPEED DATA

Field of the Invention

The present invention relates generally to in-vehicle travel information display systems, and more particularly to a method and apparatus for blanking in-vehicle display screens when the vehicle speed exceeds a predetermined speed, where the vehicle speed is determined from position indicating signals provided by a Global Positioning System (GPS).

Background

In-vehicle travel information display systems, such as navigation guides, are becoming more commonly incorporated into vehicles. Such systems typically direct a driver of a vehicle through an efficient path of travel from a source location to a destination location.

These systems are especially beneficial to drivers of commercial carrier vehicles, such as Federal Express or United Parcel Service delivery trucks, since these drivers typically must travel from a wide variety of source locations to a wide variety of destination locations in a day. Many commercial carriers install display systems in their vehicles for a variety of purposes.

Commercial carrier vehicles typically operate under federal and in some cases local regulations which require that display screens within these vehicles be blanked when these vehicles are in motion or are traveling above a predetermined speed. To aid compliance with such regulations, U. S. Patent No. 5,148,153 to Haymond shows a travel information system that automatically blanks the display screen and deactivates the input keyboard when the vehicle is detected to be in motion.

In that prior art system, a motion sensor determines whether the vehicle is in motion. The motion sensor in that system can be implemented by either counting the revolutions of the speedometer cable or wheel revolutions, or by interfacing directly with the transmission of the vehicle. A problem with the use of such a motion sensor of the prior art is that the driver of the vehicle can forgo compliance by cutting the wiring from the speedometer cable or from the transmission of the vehicle to the navigation system. Drivers of commercial carrier vehicles may forgo the inconvenience of screen blanking by cutting this wiring.

U.S. Patent No. 5,179,519 to Adachi et al. teaches the use of GPS position indicating data by a vehicle for determining the speed of the vehicle.

An in-vehicle screen blanking system that would preclude non-compliance with federal and local regulations of commercial carriers would be desirable. Objects of the Invention

Accordingly, a primary object of the present invention is to provide a method and apparatus for blanking in-vehicle display screens when the vehicle speed exceeds a predetermined speed, wherein the driver cannot easily tamper with that method and apparatus.

In particular, an object of the present invention is to determine the speed of the vehicle from Global Positioning System (GPS) position indicating signals in order to blank the in-vehicle display screen when the vehicle speed exceeds a predetermined speed.

Summary

In a general aspect of the present invention, an in-vehicle screen blanking system automatically blanks an in-vehicle screen disposed within a vehicle when the speed of the vehicle exceeds a predetermined speed. In this in-vehicle screen blanking system, a GPS receiver receives position indicating signals from a Global Positioning System (GPS) to determine the speed of the vehicle from the position indicating signals. A data processor compares the speed of the vehicle determined from the GPS data to the predetermined speed to blank the in-vehicle screen when the speed of the vehicle is greater than the predetermined speed. In a related aspect of the present invention, the in-vehicle screen is restored back to display travel guide information after the screen has been blanked if the speed of the vehicle is less than the predetermined speed.

In a further aspect of the present invention, the data processor includes a speech synthesizer to generate a synthesized audio format of corresponding information to be displayed on the screen, when the screen is blanked.

These and other features and advantages of the present invention will be better understood by considering the following detailed description of the invention which is presented with the attached drawings.

Brief Description of the Drawings

Fig. 1 shows a diagram of an in-vehicle screen blanking system of the present invention;

Fig. 2 shows a block diagram of an example travel guide information display system;

Fig. 3 shows a block diagram of a system for transmitting messages of travel guide information to be displayed by the in-vehicle display system of Fig. 2;

Fig. 4 shows a format for the messages transmitted by the message transmitting system of Fig. 3;

Fig. 5 shows the designation of links and sublinks for each location on a map;

Fig. 6 shows the assignment of coverage zones to each message transmitting system of Fig. 3; and

Fig. 7 shows a flowchart illustrating the steps of operation of the in-vehicle screen blanking system of the present invention.

Detailed Description of the Preferred Embodiment

Fig. 1 illustrates an in-vehicle screen blanking system 100 according to a preferred embodiment of the present invention. A typical configuration for Global Positioning System (GPS) signal reception comprises at least three GPS satellites for sending position indicating signals that determine the position of the vehicle. The GPS configuration in Fig. 1 is comprised of a first GPS satellite 102, a second GPS satellite 104, and a third GPS satellite 106.

The first GPS satellite 102 sends a first position indicating signal 108, the second GPS satellite 104 sends a second position indicating signal 110, and the third satellite 106 sends a third position indicating signal 112. These position indicating signals are detected by a GPS signal receiving antenna 114 of a vehicle 116 and are sent to a GPS receiver 118 on the vehicle 116. The GPS receiver is operatively coupled to a data processor 120 which may include a speech synthesizer 124, and the data processor is operatively coupled to an in-vehicle display screen 122 which may include a speaker 126.

The display screen 122 may be part of a travel guide information system. An example travel guide information system is an in-vehicle sign display system. This system displays on the screen 122 typical road signs. Such road signs can include approaching intersection signs such as the typical freeway exit sign near a highway intersection, or a "Road Construction Ahead" sign, or a sign for a rest stop, or a sign warning of an accident or traffic ahead, or a sign for commercial advertisement. Each of these signs automatically pops up on the in-vehicle display screen when the vehicle is at a location corresponding to a particular sign. For example, a sign for a freeway exit pops up on the screen when the vehicle is approaching the highway intersection for that freeway exit. In this manner, the driver of the commercial carrier vehicle may quickly verify that the vehicle is following the correct route, among other advantages of the present invention.

Fig. 2 shows a block diagram of such a travel guide information system 200 which is disposed within a vehicle. This system includes a message receiving antenna 202, operatively coupled to a message receiver 204. A GPS antenna 205 is operatively connected to a location determining system 206, which determines the location of the vehicle from the GPS position indicating signals sent by the GPS satellites as in Fig. 1 and detected by the GPS antenna. The message receiver 204 and the location determining system 206 are operatively coupled to a processor 208 which is operatively coupled to an in-vehicle display 210.

Fig. 3 shows a block diagram of a system 300 for transmitting a message that includes the sign to be displayed by the travel guide information system 200 of Fig. 2. This transmitting system includes a message entry module 302 operatively coupled to a message encoding module 304 operatively coupled to a transmitter 306. A message transmitting antenna 308, operatively coupled to the transmitter 306, sends out the messages to be received by the message receiving antenna 202 in Fig. 2.

The operation of this travel guide information system 200 is now described. The message which is sent out via the message sending antenna 308 of Fig. 3 and which is received via the message receiving antenna 202 of Fig. 2 is in a transmitted message format 400 as illustrated in Fig. 4. This message format is comprised of multiple message fields for each message. A first message field 402 contains a "start of message" word to indicate a start of the message. A second message field 404 contains a location and in some cases the direction of the vehicle where the corresponding sign of this message should be displayed on the in-vehicle screen of that vehicle. A third message field 406 contains sign data which determines the content of the sign to be displayed on the in-vehicle screen. Finally, a fourth message field 408 contains an "end of message" word to indicate an end of the message.

Sign data for the sign data field 406 and the corresponding location and direction for the location field 404 for a message is entered at the message entry module 302 in Fig. 3. That information is put into the message format 400 of Fig. 4 at the message encoding module 304. The transmitter 306 transmits messages in that message format via the message transmitting antenna 308.

The location field 404 can specify both the location and direction of the vehicle. The sign data within the corresponding sign data field 406 is displayed when the vehicle is at that location and is travelling toward that direction. The location and direction data within the location field may be expressed in terms of latitude and longitude. Additionally, this data may be expressed in terms of a link ID field 410 and a sublink ID field 412 as shown in Fig. 4.

The assignment of links and sublinks for location and direction is illustrated in Fig. 5. A link is typically a length of a road for one direction between road intersections. For example in Fig. 5, a first link 502 is the southbound length of a road between a first road intersection 504 and a second road intersection 506. The first link 502 consists of multiple sublinks. An example of a first sublink 508 is shown in Fig. 5 in the middle of the first link 502. A second link 510 is the northbound length of a road between the first and second road intersections. The second link 510 also consists of multiple sublinks. An example sublink 512 is shown in Fig. 5 in the middle of the second link 510. By specifying a link and a sublink, a location and a direction of a vehicle can thus be specified.

In the operation of the travel guide information system 200 of Fig. 2, the message receiving antenna 202 receives a series of messages that have been sent by the message transmitting antenna 308. The message receiver 204 stores these messages. The location determining system 206 determines the actual location and direction of the vehicle from GPS position indicating signals detected by the GPS antenna 205 from the GPS satellites. The message received by the message receiving antenna 202 is in the message format 400 of Fig. 4. The processor 208 compares the location and direction field 404 of the message with the actual location and direction of the vehicle, and if they are substantially similar, then the processor 208 sends the sign data from the sign data field 406 of the message to be displayed on the display screen 210.

Once the sign data of a message is displayed, this message is cleared from storage in the message receiver 204. If the sign data of a message is not displayed, this message is stored in the message receiver 204 until the vehicle enters the location and direction specified for that message or until a predetermined period of time, whichever is sooner. Thus, if a sign for a message stored within a message receiver 204 is not displayed for the predetermined period of time, then that message can be deemed to be "stale." The probability that a stale message will be displayed is low since a stale message typically indicates that a vehicle is moving away from the location specified in the location field of that message. Thus, once a message becomes stale, that message is cleared out of storage within the message receiver 204.

Multiple instances of the message transmitter 306 may be provided to cover a wide geographical area. Each transmitter may be assigned to a respective geographical coverage zone as illustrated in Fig. 6. For example, a first transmitter 602 is assigned to a first coverage zone 604, a second transmitter 606 is assigned to a second coverage zone 608, and a third transmitter 610 is assigned to a third coverage zone 612. A coverage zone is the geographic area in which a vehicle within that zone should "listen" to the respective transmitter assigned to that coverage zone. Thus, messages transmitted within a coverage zone contain sign data corresponding to a location within that coverage zone.

Transmitters in close proximity to each other are assigned different frequencies. The processor 208 in Fig. 2 is given a file that indicates the respective radio frequency for each coverage zone. When the vehicle enters a coverage zone, the processor 208 tunes the message receiver 204 to the respective radio frequency of that coverage zone.

In this manner, a vehicle receives messages for display on a real time basis as the vehicle enters different coverage zones. Then a sign contained within a message is displayed as soon as the vehicle is substantially near the location specified within the message containing that sign.

Fig. 7 shows the steps that are performed during operation of the in-vehicle screen blanking system 100 of Fig. 1. Referring to Figs. 1 and 7, upon receiving the GPS position indicating signals 108, 110, 112, via the GPS signal receiving antenna

114, the GPS receiver 118 determines the vehicle speed of the vehicle 116 from the GPS position indicating signals.

As shown in Fig. 7, the data processor 120 reads the vehicle speed from the GPS receiver 118 at step 702. The data processor then determines if the in-vehicle display screen 122 is already blanked in step 704. In the case the screen is already blanked, the vehicle speed is compared with a predetermined speed which is the threshold speed when the display screen 122 should be blanked at step 706. The threshold speed may be determined by federal or local regulations of commercial carrier vehicles, and can be zero. The threshold speed can be programed into the data processor or a user can enter in this threshold speed. In the case a user can vary the threshold speed, the user may have to prove access to vary this speed by entering in a password. A password verification prevents non-compliance by drivers of commercial carriers by precluding the drivers' ability to change the threshold speed.

In the case the vehicle speed is greater than the predetermined speed, the display screen is blanked at step 708. Any visual images displayed on the screen 210 is blanked out. If the display screen is blanked, then the speech synthesizer 124 can be used to present the message to be displayed on the display screen in an audio format. The data processor 120 of Fig. 1 can include that speech synthesizer 124, and the display 122 can include the speaker 126 for presenting the sign data in that audio format. If the vehicle speed is not greater than (or not greater than or equal to) the predetermined speed, then the display screen is kept on, and the data processor goes back to step 702 to recheck the speed of the vehicle such that the speed of the vehicle can be rechecked periodically.

If at step 704, the screen is already blanked, then it may be assumed that in a prior time period the vehicle speed exceeded the predetermined speed. In that case, the vehicle speed is again compared with the predetermined speed in a current time period at step 710. In the case the vehicle speed has returned to being less than (or less than or equal to) the predetermined speed, the display screen is restored to display the signs at step 712. If the vehicle speed is not less than (or not less than or equal to) the predetermined speed, then the display screen is kept off, and the data processor goes back to step 702 to recheck the speed of the vehicle.

In any case, the speed of the vehicle is rechecked by returning to step 702. In this manner, the speed of the vehicle is monitored every predetermined time period, and the condition of the in-vehicle display screen is updated every predetermined time period. In an alternative embodiment, the time period between each comparison of the vehicle speed to the predetermined speed can be varied with the speed of the vehicle. For example, when the speed of the vehicle is higher, than the comparison of the vehicle speed to the predetermined speed can be less frequent since the probability that the speed of the vehicle will fall below the predetermined threshold speed within a short time period is lower.

With the in-vehicle screen blanking system of the present invention, the in- vehicle display screen is blanked when the vehicle speed is above (or above or equal to) a predetermined speed. Once blanked, the display screen is restored to a displaying mode if the vehicle speed falls back to below the predetermined speed. The vehicle speed is determined from position indicating signals from GPS satellites. With this means of determining vehicle speed, non-compliance with federal or local regulations that require blanking of in-vehicle display screens when the vehicle speed exceeds a threshold is made more difficult.

The forgoing description is by way of example only and is not intended to be limiting. For example, the in-vehicle screen blanking system can be used in conjunction with any in-vehicle display screen and not only display screens for displaying typical road signs along the locations of a vehicle. Any patents referred to herein should be deemed to be incorporated by reference as to any subject matter deemed essential to a proper understanding of the present invention, for example, the known operations of the Global Positioning System. The invention is limited only as defined in the following claims and equivalents thereof.

Claims

CLAIMSWhat is claimed is:
1. A method for automatically blanking an in-vehicle screen disposed within a vehicle, the method including in combination, the steps of: a) receiving position indicating signals for said vehicle from a Global Positioning System (GPS); b) determining a speed of said vehicle from said position indicating signals; and c) blanking said screen when said speed is greater than a predetermined speed.
2. The method of claim 1, further including the step of: d) restoring said screen after said step of blanking when said speed is less than said predetermined speed.
3. The method of claim 2, further including the step of: e) repeating steps a-d every predetermined time period.
4. The method of claim 2, further including the step of: f) repeating steps a-d after a time period, wherein said time period increases with an increase in said vehicle speed.
5. The method of claim 1, further including the step of: g) generating a synthesized audio format of corresponding sign information to be displayed on said screen.
6. The method of claim 1, further including the step of: h) providing a synthesized audio format of corresponding sign information to be displayed on said screen, when said screen is blanked.
7. The method of claim 1, wherein said in-vehicle screen displays road signs, said method further including the step of: i) displaying each road sign only at a respective location of said vehicle for each road sign.
8. An in-vehicle screen blanking system for automatically blanking an in- vehicle screen disposed within a vehicle, said system comprising, in combination: a GPS receiver for receiving position indicating signals for said vehicle from a Global Positioning System (GPS) and for determining a speed of said vehicle from said position indicating signals; and a data processor, operatively connected to said GPS receiver and said screen, for comparing said speed of said vehicle with a predetermined speed to blank said screen when said speed is greater than said predetermined speed.
9. The screen blanking system of claim 8, the data processor further including a speech synthesizer for generating a synthesized audio format of corresponding information to be displayed on said screen.
10. The screen blanking system of claim 9, wherein said synthesized audio format is provided instead of a display on said screen, when said screen is blanked.
11. The screen blanking system of claim 8, wherein said data processor restores said screen after said blanking, when said speed is less than said predetermined speed.
12. The screen blanking system of claim 8 wherein said in-vehicle screen displays road signs, and wherein, said data processor controls each road sign to be displayed only at a respective location of said vehicle for each sign.
13. An in-vehicle sign display system having a screen blanking system for automatically blanking an in-vehicle screen disposed within a vehicle, said display system comprising, in combination: a display screen for displaying road signs within said vehicle, each road sign being displayed when said vehicle is at a respective location for each road sign; a message transmitting system for transmitting road sign messages, each road sign message comprising data for a respective road sign and comprising a respective vehicle location for said respective road sign; a message receiving antenna for detecting said road sign messages sent by said message transmitting system; a message receiver, operatively connected to said message receiving antenna, for receiving and storing said road sign messages detected by said message receiving antenna; a GPS antenna for detecting position indicating signals sent by a Global Positioning System (GPS) for said vehicle; a GPS receiver, operatively connected to said GPS antenna, for receiving said position indicating signals detected by said GPS antenna for said vehicle and for determining a location and a speed of said vehicle from said position indicating signals; and a data processor, operatively connected to said message receiver, said GPS receiver, and said display screen, for comparing said speed of said vehicle with a predetermined speed to blank said screen when said speed is greater than said predetermined speed, and for comparing said location of said vehicle with said respective vehicle location contained in each road sign message received by said message receiving antenna to control said screen to display a respective road sign contained within each message when said location of said vehicle is substantially similar to said respective vehicle location specified for said respective road sign for each message.
14. The in-vehicle sign display system of claim 13, the data processor further including a speech synthesizer for generating a synthesized audio format of corresponding information to be displayed on said screen.
15. The in-vehicle sign display system of claim 14, wherein said synthesized audio format is provided instead of a display on said screen, when said screen is blanked.
16. The in-vehicle sign display system of claim 13, wherein said data processor restores said screen after said blanking, when said speed is less than said predetermined speed.
17. The in-vehicle sign display system of claim 13, wherein said message transmitting system further includes: a message entry module for inputting data for said road sign messages; a message encoding module for encoding said data for said road sign messages into a transmitted message format; and a transmitter for transmitting said road sign messages in said transmitted message format.
PCT/US1998/005737 1997-03-24 1998-03-23 In-vehicle screen blanking using global positioning system (gps) speed data WO1998043192A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US82204097A true 1997-03-24 1997-03-24
US08/822,040 1997-03-24

Publications (1)

Publication Number Publication Date
WO1998043192A1 true WO1998043192A1 (en) 1998-10-01

Family

ID=25234959

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/005737 WO1998043192A1 (en) 1997-03-24 1998-03-23 In-vehicle screen blanking using global positioning system (gps) speed data

Country Status (1)

Country Link
WO (1) WO1998043192A1 (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867850A2 (en) * 1997-03-24 1998-09-30 Toyota Jidosha Kabushiki Kaisha A communications terminal device, a communications system, and a storing medium for storing a program to control data processing by the communications terminal device
GB2340241A (en) * 1998-07-28 2000-02-16 David Roger Southcott Speed warning device with GPS
WO2003077206A1 (en) * 2002-03-14 2003-09-18 Nd A Islandi A method and system for determining a track record of a moving object
WO2005090110A1 (en) * 2004-03-23 2005-09-29 Scania Cv Ab (Publ) Gear shifting system
CN101887643A (en) * 2010-06-18 2010-11-17 北京理工大学 Vehicular intelligent speed-limiting device
US20110264523A1 (en) * 2010-04-27 2011-10-27 Research In Motion Limited System and method for distributing messages to communicating electronic devices based on profile characteristics of users of the devices
EP2672223A1 (en) * 2012-06-05 2013-12-11 Apple Inc. Voice instructions during navigation
US8965696B2 (en) 2012-06-05 2015-02-24 Apple Inc. Providing navigation instructions while operating navigation application in background
TWI487881B (en) * 2012-06-05 2015-06-11 Apple Inc Electronic device, voice-activated method of providing navigational directions, method of providing navigational directions, and machine readable medium
ES2585850A1 (en) * 2015-04-07 2016-10-10 Javier Uribesalgo Iza Security system for transport
US9616749B2 (en) 2013-05-24 2017-04-11 Hand Held Products, Inc. System and method for display of information using a vehicle-mount computer
US9682625B2 (en) 2013-05-24 2017-06-20 Hand Held Products, Inc. System and method for display of information using a vehicle-mount computer
US9749824B2 (en) 2015-02-12 2017-08-29 Foster Products Inc. Selective mobile device component lockdown in moving vehicles
US9813792B2 (en) 2010-07-07 2017-11-07 Iii Holdings 4, Llc Hearing damage limiting headphones
US9880019B2 (en) 2012-06-05 2018-01-30 Apple Inc. Generation of intersection information by a mapping service
US9886794B2 (en) 2012-06-05 2018-02-06 Apple Inc. Problem reporting in maps
US9918169B2 (en) 2010-09-30 2018-03-13 Iii Holdings 4, Llc. Listening device with automatic mode change capabilities
US9997069B2 (en) 2012-06-05 2018-06-12 Apple Inc. Context-aware voice guidance
US10006505B2 (en) 2012-06-05 2018-06-26 Apple Inc. Rendering road signs during navigation
US10089852B2 (en) 2012-01-06 2018-10-02 Iii Holdings 4, Llc System and method for locating a hearing aid
US10176633B2 (en) 2012-06-05 2019-01-08 Apple Inc. Integrated mapping and navigation application
US10272784B2 (en) 2017-06-15 2019-04-30 Hand Held Products, Inc. System and method for display of information using a vehicle-mount computer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357593A (en) * 1979-09-06 1982-11-02 Siemens Aktiengesellschaft Guidance system for individual traffic
US4591823A (en) * 1984-05-11 1986-05-27 Horvat George T Traffic speed surveillance system
US5148153A (en) * 1990-12-20 1992-09-15 Motorola Inc. Automatic screen blanking in a mobile radio data terminal
US5179519A (en) * 1990-02-01 1993-01-12 Pioneer Electronic Corporation Navigation system for vehicle
US5257023A (en) * 1991-03-28 1993-10-26 Nissan Motor Co., Ltd. Onboard road map display systems
US5485161A (en) * 1994-11-21 1996-01-16 Trimble Navigation Limited Vehicle speed control based on GPS/MAP matching of posted speeds

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357593A (en) * 1979-09-06 1982-11-02 Siemens Aktiengesellschaft Guidance system for individual traffic
US4591823A (en) * 1984-05-11 1986-05-27 Horvat George T Traffic speed surveillance system
US5179519A (en) * 1990-02-01 1993-01-12 Pioneer Electronic Corporation Navigation system for vehicle
US5148153A (en) * 1990-12-20 1992-09-15 Motorola Inc. Automatic screen blanking in a mobile radio data terminal
US5257023A (en) * 1991-03-28 1993-10-26 Nissan Motor Co., Ltd. Onboard road map display systems
US5485161A (en) * 1994-11-21 1996-01-16 Trimble Navigation Limited Vehicle speed control based on GPS/MAP matching of posted speeds

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867850A2 (en) * 1997-03-24 1998-09-30 Toyota Jidosha Kabushiki Kaisha A communications terminal device, a communications system, and a storing medium for storing a program to control data processing by the communications terminal device
EP0867850A3 (en) * 1997-03-24 2000-02-23 Toyota Jidosha Kabushiki Kaisha A communications terminal device, a communications system, and a storing medium for storing a program to control data processing by the communications terminal device
US6122682A (en) * 1997-03-24 2000-09-19 Toyota Jidosha Kabushiki Kaisha Communication system for controlling data processing according to a state of a communication terminal device
GB2340241A (en) * 1998-07-28 2000-02-16 David Roger Southcott Speed warning device with GPS
WO2003077206A1 (en) * 2002-03-14 2003-09-18 Nd A Islandi A method and system for determining a track record of a moving object
US7398157B2 (en) 2002-03-14 2008-07-08 Nd A Islandi Ehf. Method and system for determining a track record of a moving object
WO2005090110A1 (en) * 2004-03-23 2005-09-29 Scania Cv Ab (Publ) Gear shifting system
US20110264523A1 (en) * 2010-04-27 2011-10-27 Research In Motion Limited System and method for distributing messages to communicating electronic devices based on profile characteristics of users of the devices
CN101887643A (en) * 2010-06-18 2010-11-17 北京理工大学 Vehicular intelligent speed-limiting device
US9813792B2 (en) 2010-07-07 2017-11-07 Iii Holdings 4, Llc Hearing damage limiting headphones
US10063954B2 (en) 2010-07-07 2018-08-28 Iii Holdings 4, Llc Hearing damage limiting headphones
US9918169B2 (en) 2010-09-30 2018-03-13 Iii Holdings 4, Llc. Listening device with automatic mode change capabilities
US10089852B2 (en) 2012-01-06 2018-10-02 Iii Holdings 4, Llc System and method for locating a hearing aid
US10176633B2 (en) 2012-06-05 2019-01-08 Apple Inc. Integrated mapping and navigation application
US9230556B2 (en) 2012-06-05 2016-01-05 Apple Inc. Voice instructions during navigation
US9243924B2 (en) 2012-06-05 2016-01-26 Apple Inc. Providing navigation instructions while device is in locked mode
TWI487881B (en) * 2012-06-05 2015-06-11 Apple Inc Electronic device, voice-activated method of providing navigational directions, method of providing navigational directions, and machine readable medium
US9052197B2 (en) 2012-06-05 2015-06-09 Apple Inc. Providing navigation instructions while device is in locked mode
US8965696B2 (en) 2012-06-05 2015-02-24 Apple Inc. Providing navigation instructions while operating navigation application in background
US10018478B2 (en) 2012-06-05 2018-07-10 Apple Inc. Voice instructions during navigation
CN104335012A (en) * 2012-06-05 2015-02-04 苹果公司 Voice instructions during navigation
US9880019B2 (en) 2012-06-05 2018-01-30 Apple Inc. Generation of intersection information by a mapping service
US9886794B2 (en) 2012-06-05 2018-02-06 Apple Inc. Problem reporting in maps
US9903732B2 (en) 2012-06-05 2018-02-27 Apple Inc. Providing navigation instructions while device is in locked mode
EP2672223A1 (en) * 2012-06-05 2013-12-11 Apple Inc. Voice instructions during navigation
US9997069B2 (en) 2012-06-05 2018-06-12 Apple Inc. Context-aware voice guidance
US10006505B2 (en) 2012-06-05 2018-06-26 Apple Inc. Rendering road signs during navigation
US10156455B2 (en) 2012-06-05 2018-12-18 Apple Inc. Context-aware voice guidance
US9682625B2 (en) 2013-05-24 2017-06-20 Hand Held Products, Inc. System and method for display of information using a vehicle-mount computer
US9616749B2 (en) 2013-05-24 2017-04-11 Hand Held Products, Inc. System and method for display of information using a vehicle-mount computer
US9749824B2 (en) 2015-02-12 2017-08-29 Foster Products Inc. Selective mobile device component lockdown in moving vehicles
ES2585850A1 (en) * 2015-04-07 2016-10-10 Javier Uribesalgo Iza Security system for transport
US10272784B2 (en) 2017-06-15 2019-04-30 Hand Held Products, Inc. System and method for display of information using a vehicle-mount computer

Similar Documents

Publication Publication Date Title
US6246948B1 (en) Wireless intelligent vehicle speed control or monitoring system and method
US6615137B2 (en) Method and apparatus for transferring information between vehicles
US6516273B1 (en) Method and apparatus for determination and warning of potential violation of intersection traffic control devices
EP0867020B1 (en) Apparatus for supplying traffic-related information in a vehicle
US6442473B1 (en) Method and apparatus for presenting traffic information in a vehicle
US9406229B2 (en) Travel lane advisor
EP1566665B1 (en) Apparatus and method for providing ambient parameter data and for determining weather information
US20030179110A1 (en) Broadcasting system and its broadcasting transmission apparatus and reception terminal apparatus
US6341255B1 (en) Apparatus and methods for providing route guidance to vehicles
EP0875038B1 (en) Commuter route selection system
US6919821B1 (en) Method and system for collecting meteorological data using in-vehicle systems
EP0967460A1 (en) Vehicle navigation system
EP1439373A2 (en) Device and method for providing traffic information in navigation system
US10107630B2 (en) Driver alert system
US6529831B1 (en) Emergency vehicle locator and proximity warning system
US6683538B1 (en) Position dependent messaging system
US8717192B2 (en) Method and system for using intersecting electronic horizons
US5504482A (en) Automobile navigation guidance, control and safety system
US6434477B1 (en) Method for requesting and processing traffic information
EP1738339B1 (en) Intelligent transportation system
EP1617602B1 (en) Wireless traffic control system
US5164904A (en) In-vehicle traffic congestion information system
US7930094B2 (en) System and method for exchanging positioning information between vehicles in order to estimate road traffic
EP0982698B1 (en) Road information communicating system
US8321123B2 (en) System and method for traffic condition communications

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase in:

Ref country code: CA

NENP Non-entry into the national phase in:

Ref country code: JP

Ref document number: 1998545906

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase