Invention Grant
- Patent Title: Time of flight transmitter with self-stabilized optical output phase
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Application No.: US16410868Application Date: 2019-05-13
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Publication No.: US11639989B2Publication Date: 2023-05-02
- Inventor: Junhua Shen , Erik D. Barnes , Alberto Marinas , Daniel Peter Canniff , Siwen Liang
- Applicant: Analog Devices International Unlimited Company
- Applicant Address: IE Limerick
- Assignee: Analog Devices International Unlimited Company
- Current Assignee: Analog Devices International Unlimited Company
- Current Assignee Address: IE Limerick
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G01S7/484
- IPC: G01S7/484 ; G01S17/10 ; H01S5/068

Abstract:
A time-of-flight (ToF) transmitter with self-stabilized optical output phase with minimal overhead is described, where the transmitter may either function as a slave in that the laser pulse phase and width can be controlled by the master ToF receiver, or it can function as a master where the laser control pulse is generated on the same chip or a companion chip. When the ToF transmitter functions as a slave and receives the laser pulse control signal, the techniques of this disclosure can transform the receive path and the pre-driver circuit into part of a delay locked loop (DLL).
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