Accelerometer emulator for road noise control
AssigneeHarman International Industries, Incorporated
InventorZhijun Chen
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Abstract
Methods and mechanisms are provided for emulating automotive audio bus (A2B) based accelerometers. A port of an electronic device, which may be implemented using a Field-Programmable Gate Array (FPGA), may be connected downstream from an A2B port of an A2B node of a vehicle. A set of emulated accelerometer data at the electronic device may be selected, and the set of emulated accelerometer data may then be transmitted from the A2B port of the electronic device to the A2B port of the A2B node.
Claims20
A method comprising:
- connecting an automotive audio bus (A2B) port of an electronic device downstream from an A2B port of an A2B node of a vehicle;
- selecting a set of emulated accelerometer data at the electronic device;
- and
- transmitting the set of emulated accelerometer data from the A2B port of the electronic device to the A2B port of the A2B node.
An apparatus for emulating one or more vehicular accelerometers, the apparatus comprising:
- a first automotive audio bus (A2B) port compliant with a first revision of an A2B specification;
- a second A2B port compliant with a second revision of the A2B specification, the second revision being different than the first revision;
- and
- a Field-Programmable Gate Array (FPGA) programmed to:
- establish an A2B connection to an A2B port of an A2B node of a vehicle, the A2B connection being established through either the first A2B port or the second A2B port, and the A2B connection being established downstream from the A2B port of the A2B node of the vehicle;
- and
- transmit a set of emulated accelerometer data over the A2B connection.
A system for emulating one or more vehicular accelerometers, the system comprising:
- a first automotive audio bus (A2B) port compliant with revision 1.0 of an A2B specification;
- a second A2B port compliant with revision 2.0 of the A2B specification;
- one or more processors;
- and
- a non-transitory memory having executable instructions that, when executed, cause the one or more processors to:
- establish an A2B connection to an A2B port of an A2B node of a vehicle, the A2B connection being established through either the first A2B port or the second A2B port, and the A2B connection being established downstream from the A2B port of the A2B node of the vehicle;
- establish a configuration under which to transmit data over the A2B connection;
- and
- transmit a set of emulated accelerometer data over the A2B connection in accordance with the configuration.
Dependencies are inferred from the claim text.