RECEIVER SYSTEM FOR VEHICLES
First Claim
Patent Images
1. A receiver system for vehicles having a first transmitter and a second transmitter, the first transmitter transmitting a data signal and the second transmitter transmitting a data signal, the system comprising:
- a first receiver unit including a first antenna for receiving the data signal of the first transmitter, a first receiver circuit for receiving an output signal of the first antenna corresponding to the data signal of the first transmitter, a first microcomputer for receiving an output signal of the first receiver circuit corresponding to the output signal of the first antenna, and a first interface for receiving and outputting an output signal of the first microcomputer corresponding to the output signal of the first receiver circuit;
a second receiver unit including a second antenna for receiving the data signal of second transmitter, a second receiver circuit for receiving an output signal of the second antenna corresponding to the data signal of the second transmitter, a second microcomputer for receiving an output signal of the second receiver circuit corresponding to the output signal of the second antenna, and a second interface for receiving and outputting an output signal of the second microcomputer corresponding to the output signal of the second receiver circuit; and
an electronic control unit including a third interface for receiving the output signals of the first interface and the second interface as output signals of the first receiver unit, and the second receiver unit, and a third microcomputer for producing an output signal by processing an output signal of the third interface,wherein the first receiver unit includes a change-over switch, which is controllable by the first microcomputer, for selecting and transmitting one of the output signals of the first microcomputer and the second receiver unit to the electronic control unit.
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Accused Products
Abstract
A tire air pressure detection system and a remote key entry system have first and second receiver units, respectively. The first receiver unit has a change-over switch, which selectively outputs to a chassis ECU an output signal of either one of the first and second receiver units. Thus, the chassis ECU can receive any one of the output signals by only one interface.
22 Citations
9 Claims
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1. A receiver system for vehicles having a first transmitter and a second transmitter, the first transmitter transmitting a data signal and the second transmitter transmitting a data signal, the system comprising:
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a first receiver unit including a first antenna for receiving the data signal of the first transmitter, a first receiver circuit for receiving an output signal of the first antenna corresponding to the data signal of the first transmitter, a first microcomputer for receiving an output signal of the first receiver circuit corresponding to the output signal of the first antenna, and a first interface for receiving and outputting an output signal of the first microcomputer corresponding to the output signal of the first receiver circuit; a second receiver unit including a second antenna for receiving the data signal of second transmitter, a second receiver circuit for receiving an output signal of the second antenna corresponding to the data signal of the second transmitter, a second microcomputer for receiving an output signal of the second receiver circuit corresponding to the output signal of the second antenna, and a second interface for receiving and outputting an output signal of the second microcomputer corresponding to the output signal of the second receiver circuit; and an electronic control unit including a third interface for receiving the output signals of the first interface and the second interface as output signals of the first receiver unit, and the second receiver unit, and a third microcomputer for producing an output signal by processing an output signal of the third interface, wherein the first receiver unit includes a change-over switch, which is controllable by the first microcomputer, for selecting and transmitting one of the output signals of the first microcomputer and the second receiver unit to the electronic control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification