Invention Grant
- Patent Title: Selective activation of tire pressure monitoring system (TPMS) sensor modules for radio-frequency (RF) communication using directional RF beams
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Application No.: US17335458Application Date: 2021-06-01
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Publication No.: US11872853B2Publication Date: 2024-01-16
- Inventor: Michael Kandler , Thomas Engl , Tuncay Erdoel , Maximilian Werner , Maciej Wojnowski
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Harrity & Harrity, LLP
- Main IPC: B60C23/04
- IPC: B60C23/04 ; B60C11/24

Abstract:
A tire pressure monitoring system (TPMS) includes a communication interface device configured to communicate with a target TPMS sensor module. The communication interface device include a radio frequency (RF) transceiver configured to generate at least one wake-up signal; an antenna array configured to transmit each wake-up signal as a directional RF beam; a processing circuit configured to monitor for a response signal in response to the antenna array transmitting the at least one wake-up signal; and a power amplifier configured to set a power of each wake-up signal according to an adjustable power setting such that the power of each subsequent wake-up signal is increased in discrete steps until the response signal is received by the RF transceiver.
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Information query