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US 11,536,823 B2Granted
Sensor circuit using orthogonal phase coding
AssigneeApple Inc.
InventorZohar Agon
Life of this patent
Estimating the term…
Abstract
A transceiver circuit included in a computer system may include multiple antennas, a transmitter circuit and a receiver circuit. The transmitter circuit may store an identifier number and generate multiple numbers using the stored identifier number. The transmitter circuit may also generate a transmit signal that include multiple pulses, where a. given pulse may include multiple chirps encoded with the multiple numbers. The receiver circuit may receive a reflected version of the transmit signal and generate an output signal using the reflected version of the transmit signal.
Claims15
An apparatus, comprising:
- a transmitter circuit configured to:
- store an identifier number;
- determine a code word using the identifier number, wherein the code word includes a plurality of numbers;
- generate a modulation signal, wherein a phase of the modulation signal shifts N times within a period of a particular one of a plurality of pulses, wherein N is a positive integer corresponding to a quantity of numbers included in the plurality of numbers;
- generate a transmit signal that includes the plurality of pulses using the modulation signal and a baseband signal, wherein a given one of the plurality of pulses includes a plurality of chirps coded with respective ones of the plurality of numbers;
- and
- broadcast the transmit signal using a first antenna;
- and
- a receiver circuit configured to:
- receive, using a second antenna, an echo signal that is a reflected version of the transmit signal;
- and
- generate an output signal using the echo signal.
9 more elements
A method, comprising:
- storing, by a transmitter circuit, an identifier number;
- determining, by the transmitter circuit, a code word using the identifier number, wherein the code word includes a plurality of numbers;
- generating, by the transmitter circuit, a modulation signal, wherein a phase of the modulation signal shifts N times within a period of a particular one of a plurality of pulses, wherein N is a positive integer corresponding to a quantity of numbers included in the plurality of numbers;
- generating, by the transmitter circuit, a transmit signal that includes the plurality of pulses using the modulation signal and a baseband signal, wherein a given one of the plurality of pulses includes a plurality of chirps coded with respective ones of the plurality of numbers;
- and
- broadcasting, by the transmitter circuit, the transmit signal using a first antenna;
- receiving, by a receiver circuit using a second antenna, an echo signal that is a reflected version of the transmit signal;
- and
- generating, by the receiver circuit, an output signal using the echo signal.
6 more elements
An apparatus, comprising:
- a transceiver circuit including a first antenna and a second antenna, wherein the transceiver circuit is configured to:
- store an identifier number;
- determine a code word using the identifier number, wherein the code word includes a plurality of numbers;
- generate a modulation signal, wherein a phase of the modulation signal shifts N times within a period of a particular one of a plurality of pulses, wherein N is a positive integer corresponding to a quantity of numbers included in the plurality of numbers;
- generate a transmit signal that includes the plurality of pulses using the modulation signal and a baseband signal, wherein a given one of the plurality of pulses includes a plurality of chirps coded with respective ones of the plurality of numbers;
- broadcast the transmit signal using the first antenna;
- receive, using the second antenna, an echo signal that is a reflected version of the transmit signal;
- and
- generate an output signal using the echo signal.
6 more elements
Dependencies are inferred from the claim text.