Tire condition detecting device

Patent metadata

Field	Value
Publication number	US-10780748-B2
Application number	US-201716471721-A
Country	US
Kind code	B2
Filing date	Oct 30, 2017
Priority date	Oct 30, 2017
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

A transmitter includes a condition detecting section, which detects a condition of a tire, a memory section, which stores identification information, a transmitting section, which transmits a data signal, a trigger receiving section, which receives a trigger signal transmitted from a trigger device, and a controlling section. When the trigger receiving section receives the trigger signal, the controlling section generates data corresponding to the trigger signal and causes the transmitting section to transmit the data signal, which includes the generated data. The controlling section generates encrypted data when the trigger receiving section receives a trigger signal of unmodulated waves. The controlling section generates non-encrypted data that includes the identification information when the trigger receiving section receives a trigger signal of modulated waves.

First claim

The invention claimed is:

1. A tire condition detecting device comprising:
a sensor, which is configured to detect a condition of a tire;
a memory, which stores identification information;
a transmission circuit, which is configured to transmit a data signal;
a trigger receiver, which is configured to receive a trigger signal transmitted from a trigger device; and
circuitry, which is configured to, when the trigger receiver receives the trigger signal, generate data corresponding to the trigger signal and cause the transmission circuit to transmit the data signal, which includes the generated data,
wherein the circuitry is configured to
generate data that is encrypted when the trigger receiver receives a trigger signal of unmodulated waves, and
generate data that is non-encrypted when the trigger receiver receives a trigger signal of modulated waves.

2. The condition detecting device according to claim 1 , wherein the circuitry is configured to generate the encrypted data using, as a key, the identification information itself or information based on the identification information.

3. A tire condition detecting device comprising:
a sensor, which is configured to detect a condition of a tire;
a memory, which stores identification information;
a transmission circuit, which is configured to transmit a data signal;
a receiver, which is configured to receive a trigger signal transmitted from a trigger device; and
circuitry, which is configured to, when the trigger receiver receives the trigger signal, generate data corresponding to the trigger signal and cause the transmission circuit to transmit the data signal, which includes the generated data,
wherein the circuitry is configured to
generate data that does not include the identification information when the trigger receiver receives a trigger signal of unmodulated waves, and
generate data that includes the identification information when the trigger receiver receives a trigger signal of modulated waves.

4. A tire condition detecting device comprising:
a sensor, which is configured to detect a condition of a tire;
a memory, which stores identification information;
a transmission circuit, which is configured to transmit a data signal;
a trigger receiver, which is configured to receive a trigger signal transmitted from a trigger device; and
circuitry, which is configured to, when the trigger receiver receives the trigger signal, generate data corresponding to the trigger signal and cause the transmission circuit to transmit the data signal, which includes the generated data,
wherein the circuitry is configured to
cause the transmission circuit to transmit the data signal at a first output power when the trigger receiver receives a trigger signal of modulated waves, and
cause the transmission circuit to transmit the data signal at a second output power, which is lower than the first output power, when the trigger receiver receives a trigger signal of unmodulated waves.

Assignees

• Taiheiyo Kogyo Kk

Inventors

• Takeyama Takashi
• Tsujita Yasuhisa

Classifications

• B60C23/0442 Primary

  the transmitted signal comprises further information, e.g. instruction codes, sensor characteristics or identification data · CPC title

• H04Q2209/40

  using a wireless architecture · CPC title

• H04Q2209/00

  Arrangements in telecontrol or telemetry systems · CPC title

• H04Q9/00

  Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom · CPC title

• B60C23/0408 Primary

  transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver · CPC title