Last year, Apple introduced keyless entry in the BMW 5 Series, the first car to feature the feature. This function is designed to unlock, lock, and start the vehicle. According to foreign media reports, the US Patent & Trademark Office (US Patent & Trademark Office) recently published a patent for Apple’s keyless entry system for cars and other products.
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The Apple patent states that the car’s remote keyless system transmits beacons. The key receives the beacon and responds to the key code to open the doors and fire the ignition. The wireless power transmitter circuit may be located near the vehicle. There is a risk during wireless power transfer operation that the wireless power signal from the wireless power transmitter circuit may interfere with the keyless system beacon. In order to ensure that the beacon is successfully received, it is necessary to detect the interference risk and carry out the corresponding anti-jamming operation.
Interference risk detection includes vehicle remote keyless system beacon detection, key code detection, vehicle location monitoring, comparison of measured device location with stored vehicle location information, and the use of inertial measurement units or other input and output devices to monitor whether Electronic devices are connected to vehicle wireless Pairing to determine if an electronic device is moving or otherwise operating to determine if there is a risk of interference.
Anti-jamming operation is used to ensure that the vehicle’s remote keyless system can be used to operate the vehicle. These operations include operations that prompt the user to disable wireless power transfer operations, or automatically prevent wireless power transfer operations, adjust wireless power signal waveforms and frequencies, allow keys to receive transmission beacons, and allow wireless power operations to occur simultaneously with vehicle remote keyless system operation other operations.
The following Apple patent figure FIG. 1 is a schematic diagram of a wireless key system (such as a vehicle remote keyless system). Vehicle systems (#32) include door locks, ignition systems, and other devices (#26) that process circuit control. For example, the key system (#28) receives and responds to the key code from the key (#44), unlocks the door and fires the ignition. FIG. 3 is a schematic diagram of an illustrative system 8 including a vehicle remote keyless system and wireless power circuitry. The system 8 in FIG. 3 includes a vehicle 10A, a key 10B, an electronic device 10C, and an electronic device 10D.
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The following Apple patent figure FIG. 4 is a flowchart of the operation description involved in the system of the type shown in FIG. 3.
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