Tire pressure detector having reduced power consumption mechanism
US7741964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Mar 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/92
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire pressure detector employs a reduced power consumption mechanism comprising a PLL circuit including a VCO, that is operated in response to the logic states of an input data stream and a power amplifier configured to be externally located to an integrated circuit. The input data stream includes tire pressure information and is configured to be encoded to have multiple logic states. A micro-controller is employed to control the VCO, turning the VCO, and/or the amplifier, on and off for a certain period, according to the pattern of each data bit of the input data stream thus providing reduced current consumption. This tire pressure detector thus embodies an optimized circuit arrangement in terms of power efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.