Dual configuration receiver

• US 20040124970A1
• Filed: 11/19/2003
• Published: 07/01/2004
• Est. Priority Date: 11/19/2002
• Status: Active Grant

• Current Assignee: Continental Automotive GmbH (Continental AG)
• Original Assignee: Continental Automotive GmbH (Continental AG)
• Inventors: Fischer, Robert, Reisinger, Thomas
• Granted Patent: US 7,664,479 B2
• Time in Patent Office: Days
• US Class Current: 340/10.1
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver

Abstract

The invention relates to a method for receiving first signals and further signals using a receiver, the first and further signals differing in at least one of the transmission parameters data rate, modulation type, wake-up criterion, synchronization and threshold value, whereby in a first step, in a quiescent mode of the receiver, receiving and searching for a wake-up criterion (A) is performed intermittently using a first preset adjustable configuration of transmission parameters, and when no signal is received and no wake-up criterion (A) is found, the system switches to at least one further configuration and a search is made for a wake-up criterion (B).

Claims

1. A method for receiving first signals and further signals using a receiver, the first and further signals differing in at least one of the transmission parameters data rate, modulation type, wake-up criterion, synchronization and threshold, wherein

a) in a first step in a quiescent mode of the receiver, receiving and searching for a wake-up criterion (A) is performed intermittently using a first preset adjustable configuration of transmission parameters, and

b) when no signal is received and no wake-up criterion (A) is found, the system switches to at least one further configuration and a search is made for a wake-up criterion (B).

2. The method as claimed in claim 1, wherein when no signal is received and no wake-up criterion is found using at least one further configuration, the process starts again with step a).

3. The method as claimed in claim 1 or 2, wherein on receiving successfully and finding a wake-up criterion by step a) or b), a wake-up signal is output that contains as information the given configuration for the successful reception.

4. The method as claimed in one of the preceding claims, wherein on receiving successfully and finding a wake-up criterion by step a) or b), the receiver goes out of the quiescent mode into an active mode using the configuration that was successful for the reception concerned.

5. The method as claimed in one of the preceding claims, wherein the successful reception of a wake-up criterion by step a) or b) must take place within a preset time.

6. A receiver for carrying out a method as claimed in one of the preceding claims having a storage device for loading at least two different pre-definable receive configurations, wherein

a) the receiver has a quiescent mode in which it intermittently receives and searches for a wake-up criterion (A) using a first preset adjustable configuration of transmission parameters, and

b) has a changeover switch in order to switch to at least one further configuration when no signal is received and no wake-up criterion (A) is found, and to search for a wake-up criterion (B).

7. The receiver as claimed in claim 6, wherein the receiver has an active mode that the receiver goes into when reception is successful and a wake-up criterion has been found by step a) or b), using the configuration that was successful for the reception concerned.

8. The receiver as claimed in claim 6 or 7, wherein [it] has a time-control unit so that the switchover using the changeover switch occurs within a preset time at the latest.