IP Library › Granted Patent US 12,255,662
Granted Patent B2
US 12,255,662 · App. 17/977,074 · Granted Mar 18, 2025

Master reference oscillator system

Inventors: Dong Hwan Shin (Daejeon, KR); Dong Pil Chang (Daejeon, KR); Seong Mo Moon (Daejeon, KR); Byoung-Sun Lee (Daejeon, KR)
Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
H03L7/0991
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Quick Facts
Patent No.
US 12,255,662
App. No.
17/977,074
Granted
Mar 18, 2025
Kind
B2
Abstract

A master reference oscillator system is provided. The master reference oscillator system includes a plurality of reference oscillators and a hybrid matrix receiving signals from the plurality of reference oscillators and outputting a plurality of output signals having the same signal magnitude, wherein at least two output signals among the plurality of output signals may have a phase difference.

Claims (25)

1. A master reference oscillator system comprising:

a plurality of reference oscillators; and

a hybrid matrix receiving signals from the plurality of reference oscillators and outputting a plurality of output signals having the same signal magnitude,

wherein at least two of the plurality of output signals have a phase difference,

wherein the hybrid matrix includes one or more termination resistors.

2. The master reference oscillator system of claim 1 , wherein the hybrid matrix includes a 90-degree hybrid and a 180-degree hybrid.

3. The master reference oscillator system of claim 1 , wherein the reference oscillator has an n:1 redundancy structure, where n is a natural number greater than 1.

4. The master reference oscillator system of claim 1 , wherein the reference oscillator includes a main device and a redundancy,

wherein the master reference oscillator system further comprises a switch performing switching between the main device and the redundancy.

5. A master reference oscillator system comprising:

a plurality of reference oscillators;

a first hybrid matrix receiving signals from the plurality of reference oscillators and outputting a plurality of first output signals having the same signal magnitude; and

a second hybrid matrix receiving the plurality of first output signals from the first hybrid matrix and outputting a plurality of second output signals having the same signal magnitude,

wherein at least two of the plurality of first output signals have a phase difference, and at least two of the plurality of second output signals have a phase difference,

wherein the hybrid matrix includes one or more termination resistors.

6. A master reference oscillator system comprising:

a plurality of reference oscillators including a main device and a redundancy;

a switch performing switching between the main device and the redundancy; and

a hybrid matrix receiving an output signal from the switch and outputting a plurality of output signals having the same signal magnitude,

wherein at least two of the plurality of output signals have a phase difference.

7. The master reference oscillator system of claim 6 , wherein the hybrid matrix includes a 90-degree hybrid and a 180-degree hybrid.

8. The master reference oscillator system of claim 6 , wherein the hybrid matrix includes one or more termination resistors.

9. The master reference oscillator system of claim 6 , wherein the reference oscillator has an n:1 redundancy structure, where n is a natural number greater than 1.

10. The master reference oscillator system of claim 5 , wherein the reference oscillator has an n:1 redundancy structure, where n is a natural number greater than 1.

11. The master reference oscillator system of claim 5 , wherein the first hybrid matrix and the second hybrid matrix include a 90-degree hybrid and a 180-degree hybrid.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 31, 2022
From: SHIN, DONG HWAN; CHANG, DONG PIL; MOON, SEONG MO; LEE, BYOUNG-SUN
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 061592/0122 →
Priority Claims (1)
KR 10-2021-0193803 · Dec 31, 2021 · national
Continuity (1)
Related Publication 20230216511A1 · Jul 6, 2023
References Cited (5)
US 8737528B2 · Shin et al. · 2014 [cited by applicant]
US 10374308B2 · Thoreback · 2019 [cited by applicant]
US 20150256128A1 · Moon · 2015 [cited by examiner]
JP 2008035111A · 2008 [cited by applicant]
KR 1020150103863A · 2015 [cited by applicant]