# US 10,870,322 B2 · Code writing device, tire pressure monitoring unit and control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,870,322 B2 - Document ID: US10870322B2 - Status: Granted - Kind: B2 - Application number: 16/113,541 - Filed: 2018-08-27 - Published: 2019-03-07 - Granted: 2020-12-22 - Earliest claimed: 2017-09-05 - Assignees: Silergy Semiconductor Technology (Hangzhou) LTD - Applicants: Silergy Semiconductor Technology (Hangzhou) LTD - Inventors: ChiKang Liu - Web page: https://patentgrep.com/patent/US10870322B2 ## CPC - B60C 23/0471: {System initialisation, e.g. upload or calibration of operating parameters} - B60C 23/0455: {Transmission control of wireless signals} - B60C 23/0461: {externally triggered, e.g. by wireless request signal, magnet or manual switch} - B60C 23/0479: {Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations} - G01L 17/00: Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies - G01L 19/0092: {Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L9/025, G01L9/045, G01L9/065, G01L9/085, G01L9/105, G01L9/125, G01L19/02, G01L19/04 take precedence; measuring two or more variable G01D21/02; temperature sensors with pressure compensation G01K1/26)} - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) ## Abstract A tire pressure monitor can include: a pressure sensor configured to detect a gas pressure parameter of a tire; a wireless receiver configured to initially be in a sleep mode, and to receive a communication protocol wirelessly after being woken up from the sleep mode; and a microprocessor configured to wake up the wireless receiver according to the gas pressure parameter. ## Claims ### Claim 1 A tire pressure monitor, comprising: a) a pressure sensor configured to detect a gas pressure parameter of a tire; b) a wireless receiver configured to initially be in a sleep mode, and to receive a communication protocol wirelessly after being woken up from said sleep mode, wherein said communication protocol is received and stored in said tire pressure monitor prior to said tire pressure monitor being ready for use, and wherein said communication protocol corresponds to a vehicle model; and c) a microprocessor configured to wake up said wireless receiver according to said gas pressure parameter. ### Claim 2 (depends on 1) The tire pressure monitor of claim 1, wherein when said tire pressure monitor is installed in said tire, said microprocessor is configured to wake up said wireless receiver when said gas pressure parameter is greater than a first threshold. ### Claim 3 (depends on 1) The tire pressure monitor of claim 1, further comprising a magnetic sensor configured to detect a magnetic field intensity parameter. ### Claim 4 (depends on 3) The tire pressure monitor of claim 3, wherein before said tire pressure monitor is installed in said tire, said microprocessor is configured to wake up said wireless receiver when both said magnetic field intensity parameter is greater than a second threshold, and said gas pressure parameter is less than a third threshold. ### Claim 5 (depends on 1) The tire pressure monitor of claim 1, wherein said microprocessor is configured to control said wireless receiver to return to said sleep mode when said communication protocol is not received within a predetermined time after waking up said wireless receiver. ### Claim 6 (depends on 1) The tire pressure monitor of claim 1, wherein said wireless receiver is a Bluetooth low energy (BLE) receiver. ### Claim 7 (depends on 1) A code writing device, comprising: a) a plurality of said tire pressure monitors of claim 1; and b) a host having a wireless transmitter, wherein said wireless transmitter is configured to wirelessly transmit said communication protocol to said tire pressure monitor after said wireless receiver has woken up. ### Claim 8 (depends on 1) The tire pressure monitor of claim 1, wherein after the wireless receiver is woken up, the tire pressure monitor forms a wireless connection with a host to receive and store the communication protocol that corresponds to the vehicle model. ### Claim 9 A method of monitoring a tire pressure, the method comprising: a) acquiring, by a pressure sensor, a gas pressure parameter of a tire; b) waking up, by a microprocessor, a wireless receiver from a sleep mode according to said gas pressure parameter in order to receive a communication protocol, wherein said communication protocol is received and stored in said tire pressure monitor prior to said tire pressure monitor being ready for use, and wherein said communication protocol corresponds to a vehicle model; and c) writing said communication protocol to a memory in said tire pressure monitor, and then controlling said wireless receiver to be in said sleep mode. ### Claim 10 (depends on 9) The method of claim 9, wherein said waking up said wireless receiver to receive said communication protocol is performed when said gas pressure parameter is greater than a first threshold. ### Claim 11 (depends on 9) The method of claim 9, further comprising: a) acquiring, by a magnetic sensor, a magnetic field intensity parameter; and b) wherein said waking up said wireless receiver to receive said communication protocol is performed when both said magnetic field intensity parameter is greater than a second threshold, and said gas pressure parameter is less than a third threshold. ### Claim 12 (depends on 9) The method of claim 9, further comprising controlling said wireless receiver to return to said sleep mode when said communication protocol is not received within a predetermined time after waking up said wireless receiver.