Device and method for reproducing information in a motor vehicle

• US 6,580,972 B1
• Filed: 01/07/2002
• Issued: 06/17/2003
• Est. Priority Date: 03/22/1999
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Strohbeck, Walter
• Primary Examiner(s): Cuchlinski, Jr., William A
• Assistant Examiner(s): PIPALA, EDWARD J
• Application Number:
  US09/936,846
• Time in Patent Office: 526 Days
• Field of Search: 701/1, 701/2, 701/29, 701/33, 701/36, 701/32, 307/9.1, 307/10.1, 307/10.2, 307/10.3, 307/10.5, 307/10.6
• US Class Current: 701/1
• CPC Class Codes: G07C 2009/00507 keyless data carrier having more than one function
• CPC Class Codes: G07C 2009/00769 with data transmission performed by wireless means
• CPC Class Codes: G07C 2209/63 Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
• CPC Class Codes: G07C 5/085 using electronic data carriers
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

A device and a method for reproducing information in a motor vehicle include, as part of a keyless access system and/or drive authorization system, a portable transponder for sending a code via a transceiver to a control device arranged in the motor vehicle. Access authorization and/or drive authorization are granted if the control device receives a valid code. A display is arranged in the vehicle. The display displays specific data based on an output signal from the control device.

Claims

1. A device for use as part of at least one of a keyless access system and a drive authorization system for reproducing information in a motor vehicle, the device comprising:

at least one portable transponder for transmitting a code via a transceiver to a control device arranged in the motor vehicle, at least one of access authorization and drive authorization being granted if the control device receives a valid code; and

a display arranged in the vehicle for displaying specific data based on an output signal from the control device.

2. The device of claim 1, wherein the specific data is displayed if the valid code is received by the control device.

3. The device of claim 1, wherein the specific data is displayed if at least one of an operating element and a door contact have been operated.

4. The device of claim 1, further comprising a second transponder, wherein the specific data is displayed if another valid code is received by the control device from the second transponder.

5. The device of claim 1, wherein the transceiver sends out a search signal for causing each portable transponder of the at least one portable transponder that is within a range to send back a respective code, so that each portable transponder within the range is recognizable.

6. The device of claim 1, wherein the specific data depends on whether the valid code is received.

7. The device of claim 1, wherein the specific data stored in at least one of the at least one portable transponder and the control device is displayed.

8. The device of claim 1, wherein the display includes at least one of an acoustic display and a visual display.

9. The device of claim 1, wherein the specific data stored in at least one of the control device and the at least one portable transponder is only accessable via an interface and an input/output unit if the valid code has been received.

10. A method for reproducing information in a motor vehicle, having, as part of at least one of a keyless access system and a drive authorization system, a portable transponder for transmitting a code via a transceiver to a control device arranged in the motor vehicle, at least one of an access authorization and a drive authorization being granted if the control device receives a valid code, and having a display arranged in the vehicle, the display being for displaying specific data based on an output signal from the control device, the method comprising:

sending out a search signal from the transceiver for causing the transponder to send back the code;

evaluating the code received via the transceiver using the control device; and

activating the display.

11. The method of claim 10, wherein the display is only activated if at least one received code is found valid.

12. The method of claim 10, wherein the display is activated if, after the search signal has been sent out, at least one of and an invalid code and no code is received within a specific time period.