Transmitter for tire condition monitoring apparatus and tire condition monitoring apparatus
US6958686B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Apr 14, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transmission controller for a transmitter compares the value of data of the temperature in a tire measured by a temperature sensor with a predetermined threshold temperature, and determines the number of times a transmitting circuit performs the transmitting operation in a cycle of a predetermined length of time. For example, when the temperature in the tire rises, the number of times the transmitting circuit performs the transmitting operation in the predetermined cycle is increased. Therefore, the reduction in the reception probability of a receiver is limited even when the transmission output of the transmitter is reduced due to temperature affect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.