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1-10 of 1,373 patent results

Method of transmitting and receiving warning broadcast signals during drive in dangerous area, and system thereof

U.S. Patent US5280632 | Filed: 11/20/1991 | Issued: 01/18/1994
Assignee(s): Hyundai Electronics Industries Co., Ltd. | Inventor(s): An Jung-Gon | Agent(s): McGlew and Tuttle | Examiner(s): Reinhard J. Eisenzopf
The present invention discloses a system capable of outputting a warning broadcast after picking up warning signals from a non-human-attended transmitter installed in a dangerous area, when an auto...

Indicating apparatus from preventing vehicles from colliding with each other as they pass

U.S. Patent US5448219 | Filed: 11/21/1994 | Issued: 09/05/1995
Assignee(s): Matsushita Electric Industrial Co., Ltd. | Inventor(s): Takashi Yoshikawa + 1 | Agent(s): Spencer, Frank & Schneider | Examiner(s): Donnie L. Crosland
An indicating apparatus for preventing vehicles from colliding with each other as they pass an intersection of roads includes a vehicle sensing device placed on one of the roads a predetermined dis...

Anti-skid controller having accurate road surface detection capabilities

U.S. Patent US5719565 | Filed: 07/05/1996 | Issued: 02/17/1998
Assignee(s): Nippndenso Co., Ltd. | Inventor(s): Tadaaki Tsuno + 1 | Agent(s): Cushman, Darby & Cushman IP Group of Pillsbury, Madison & Sutro LLP | Examiner(s): Brent A. Swarthout
The wheel speed of each wheel of a vehicle is calculated based on wheel speed signals from wheel speed sensors. The wheel acceleration of each wheel is calculated based on the wheel speed. High fre...

Annunciator system with mobile receivers

U.S. Patent US5784006 | Filed: 07/05/1996 | Issued: 07/21/1998
Inventor(s): Peter A. Hochstein | Agent(s): Howard & Howard | Examiner(s): Mullen, Jr.; Thomas J.
A system for annunciating traffic information includes a plurality of stationary transmitters (42,46) for generating relatively short range, highly directional beam signals (44,48) containing a bur...

Moving-body communication device

U.S. Patent US5952940 | Filed: 07/15/1998 | Issued: 09/14/1999
Assignee(s): Denso Corporation | Inventor(s): Manabu Matsumoto | Agent(s): Pillsbury Madison & Sutro LLP | Examiner(s): Jeffrey A. Hofsass
When a vehicle-mounted device receives a FCM signal from a road-side communication device, the vehicle-mounted device receives or transmits a data signal in accordance with a link direction and a t...

Automated traffic mapping using sampling and analysis

U.S. Patent US6333703 | Filed: 10/04/2000 | Issued: 12/25/2001
Assignee(s): International Business Machines Corporation | Inventor(s): Neal J. Alewine + 4 | Agent(s): McGuireWoods, LLP + 1 | Examiner(s): Benjamin C. Lee
A system of mobile units are installed in multiple vehicles in traffic, the vehicles with mobile units being a sample of all vehicles in traffic. These mobile units include both wireless communicat...

Traffic information servicing method

U.S. Patent US6298301 | Filed: 10/12/1999 | Issued: 10/02/2001
Assignee(s): Samsung Electronics Co., Ltd. | Inventor(s): Beom-seok Kim | Agent(s): Sughrue, Mion, Zinn, Macpeak & Seas, PLLC | Examiner(s): Jacques H. Louis-Jacques
A traffic information servicing method for providing traffic information around a specific car in an undetermined area is provided. The traffic information servicing method includes a car navigatio...

Method for transmitting traffic information and devices for implementing said method

U.S. Patent US6255963 | Filed: 08/04/1999 | Issued: 07/03/2001
Assignee(s): Mannesmann AG | Inventor(s): Josef Heimann + 2 | Agent(s): Cohen, Pontani, Lieberman & Pavane | Examiner(s): Daryl Pope
The redundancy of transmitted traffic information or of traffic information which is to be transmitted is optimized by a method for transmitting traffic information from a traffic information cente...

Method and system for providing alternate routes with a navigation system

U.S. Patent US6317685 | Filed: 03/13/2000 | Issued: 11/13/2001
Assignee(s): Navigation Technologies Corp. | Inventor(s): Frank J. Kozak + 1 | Agent(s): Frank J. Kozak + 1 | Examiner(s): William A. Cuchlinski, Jr.
A feature for a navigation system that provides an evaluation of alternate routes. According to this feature, the navigation system compares the actual time of travel along a route to the estimated...

Method and system for providing and transmitting individualized traffic information

U.S. Patent US6304758 | Filed: 08/19/1999 | Issued: 10/16/2001
Assignee(s): Mannesmann AG | Inventor(s): Wolfgang Iierbig + 4 | Agent(s): Cohen, Pontani, Lieberman & Pavane | Examiner(s): Lee Nguyen
A method and system for providing and transmitting individualized traffic information from a traffic network to a user via a telephone network and at least one voice channel. Traffic information is...