US 12,191,929 B2
Delay device and control method of transmission delay
Wenlin Xu, Suzhou (CN); and Lixin Jiang, Suzhou (CN)
Assigned to Montage Technology (Kunshan) Co., Ltd., Suzhou (CN)
Appl. No. 18/269,964
Filed by Montage Technology (Kunshan) Co., Ltd., Suzhou (CN)
PCT Filed May 27, 2022, PCT No. PCT/CN2022/095725
§ 371(c)(1), (2) Date Jun. 28, 2023,
PCT Pub. No. WO2023/273746, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 202110726686.2 (CN), filed on Jun. 29, 2021.
Prior Publication US 2024/0072843 A1, Feb. 29, 2024
Int. Cl. H04B 3/20 (2006.01)
CPC H04B 3/20 (2013.01) 14 Claims
OG exemplary drawing
 
1. A delay device, comprising:
a first current source, providing a first current with a constant temperature coefficient;
a second current source, connected to the first current source in parallel and providing a second current with a negative temperature coefficient;
a first resistor, wherein a first terminal of the first resistor is coupled to the first current source and the second current source, a second terminal of the first resistor is coupled to a reference ground terminal, and the first resistor generates a control voltage on the first terminal of the first resistor according to the first current and the second current; and
a delay adjustment circuit, coupled to a transmission wire and determining a signal transmission delay of the transmission wire according to the control voltage.