PHASE DETECTOR AND SATELLITE REPEATER

Japanese Patent JP2016133380

A

PROBLEM TO BE SOLVED: To provide a compact and lightweight phase detector capable of detecting a phase uniquely.SOLUTION: The phase detector comprises first and second phase comparators, a delay circuit, and a determination section. The first phase comparator compares a comparison signal and a reference signal, and outputs a first voltage corresponding to a phase difference therebetween. The delay circuit delays a phase of the reference signal by a predetermined phase delay amount. The second phase comparator compares the comparison signal and the reference signal delayed by the phase delay amount, and outputs a second voltage corresponding to a phase difference therebetween. The determination section: obtains a detected phase difference from each of the first voltage and the second voltage; corrects the detected phase difference, obtained from the second voltage, with the phase delay amount; compares the corrected detected phase difference and the detected phase difference obtained from the first voltage; and determines, when they match each other, a phase corresponding to them as a correct phase of the comparison signal.SELECTED DRAWING: Figure 1

JPS58164311	PHASE COMPARATOR
WO/2007/037340	PHASE DIFFERENCE MEASURING DEVICE AND PHASE COMPARISON CIRCUIT ADJUSTING METHOD

NAGASAKA MASAFUMI
KAMEI MASA
NAKAZAWA SUSUMU
TANAKA SHOJI

JP2015007764A

July 25, 2016

January 19, 2015

Click for automatic bibliography generation  

NIPPON HOSO KYOKAI

G01R25/00; H03K5/26; H04B7/185

JPH07159458A	1995-06-23
JPS4818269B1	1973-06-05
JPS4718569U	1972-11-01
JP5785479B2	2015-09-30
JPS5759370U	1982-04-08

Kenji Sugimura
Makoto Fukuo
Kyoichi Saito

Previous Patent: Automatic driving device

Next Patent: ROUTE GUIDANCE SYSTEM, ROUTE GUIDANCE METHOD, AND ROUTE GUIDANCE PROGRAM