Tire condition monitoring apparatus
First Claim
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1. A tire condition monitoring apparatus for monitoring the condition of a tire attached to a vehicle, comprising:
- a transmitter, wherein the transmitter is driven by a battery for detecting the condition of the tire and wirelessly transmitting a signal including condition data that indicates the detected tire condition; and
a receiver, wherein the receiver receives the signal transmitted by the transmitter and processes the received signal;
wherein;
the signal transmitted by the transmitter includes synchronous data, which is provided at the beginning of the transmitted signal;
the data included in the transmitted signal other than the synchronous data is configured by a binary code signal;
the synchronous data is configured by a specific signal that has a pattern different from the binary code signal; and
the synchronous data is configured of a high level signal alternately timed with a low level signal.
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Abstract
Different types of data included in a signal transmitted by a transmitter, except for synchronous data, are each configured by a binary code signal of a predetermined bit count. The synchronous data is configured by a signal of a pattern different from the bit codes that configure the data other than the synchronous data. This enables a receiver to recognize the synchronous data in the transmitted signal easily and reliably. Further, the data length of the synchronous data is shortened. This shortens the data length of the signal, thus ensuring optimal wireless communication between the transmitter and the receiver.
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Citations
20 Claims
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1. A tire condition monitoring apparatus for monitoring the condition of a tire attached to a vehicle, comprising:
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a transmitter, wherein the transmitter is driven by a battery for detecting the condition of the tire and wirelessly transmitting a signal including condition data that indicates the detected tire condition; and
a receiver, wherein the receiver receives the signal transmitted by the transmitter and processes the received signal;
wherein;
the signal transmitted by the transmitter includes synchronous data, which is provided at the beginning of the transmitted signal;
the data included in the transmitted signal other than the synchronous data is configured by a binary code signal;
the synchronous data is configured by a specific signal that has a pattern different from the binary code signal; and
the synchronous data is configured of a high level signal alternately timed with a low level signal. - View Dependent Claims (2, 3, 4, 5)
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6. A transmitter of a tire condition monitoring apparatus, wherein the transmitter is driven by a battery and comprises:
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a sensor for detecting the condition of a tire; and
a transmitting circuit, wherein the transmitting circuit generates a signal including condition data that indicates the detected tire condition and wirelessly transmits the signal;
wherein;
the transmitted signal includes synchronous data, which is provided at the beginning of the transmitted signal;
the data included in the transmitted signal other than the synchronous data is configured by a binary code signal;
the synchronous data is configured by a specific signal that has a pattern different from the binary code signal; and
the synchronous data is configured of a high level signal alternately timed with a low level signal. - View Dependent Claims (7, 8, 9, 10)
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11. A method of monitoring the condition of a tire using a transmitter and a receiver, the method comprising the steps of:
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detecting a condition of a tire and generating a corresponding data signal, wherein the data signal includes synchronous data and information data; and
configuring the data signal such that the synchronous data has a pattern that is different than the binary code pattern of the information data so as to shorten the length of the data signal, wherein the configuring step is such that the pattern of the synchronous data includes a high level signal alternately timed with a low level signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A tire condition monitoring apparatus for monitoring the condition of a tire attached to a vehicle, comprising:
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a transmitter that detects a condition of the tire and wirelessly transmits a signal indicative of the tire condition;
wherein the signal transmitted by the transmitter includes both synchronous data and data other than the synchronous data;
wherein the data other than the synchronous data is configured by a binary code signal and the synchronous data is configured by a signal that has a pattern different from the binary code signal; and
wherein the synchronous data is configured of a high level signal alternately timed with a low level signal. - View Dependent Claims (19, 20)
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Specification