Multiple RF receiver and locating method using the same
AssigneePusan National University Industry-University Cooperation Foundation
InventorsYun-Ju Paek, Hyun-Tae Cho, Hyun-Sung Jang
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Abstract
A multiple RF receiver and locating method using the same have developed. The multiple RF receiver includes: a clock generator for generating a clock according to multiple RF receiving modules included in a multiple RF receiving unit; a phase distributor for dividing the clock into clocks having different phases, and providing the clocks to the multiple RF receiving unit as clock sources; the multiple RF receiving unit for generating SFD (Start of Frame Delimiter) signals by using the phases of the clocks provided as the clock sources; and a time measuring unit for measuring the SFD signals for use as data for location measurement.
Claims19
A multiple RF receiver comprising:
- a clock generator for generating a clock;
- a phase distributor for dividing the generated clock into clocks having different phases according to multiple RF receiving modules included in a multiple RF receiving unit, and providing the divided clocks to the multiple RF receiving unit as clock sources;
- said multiple RF receiving unit comprising the multiple RF receiving modules which generate SFD(Start of Frame Delimiter) signals, respectively, by using the phases of the clocks provided as the clock sources;
- and
- a time measuring unit for measuring the SFD signals for use as data for location measurement.
A multiple RF receiver comprising:
- a multiple RF receiving unit comprising multiple RF receiving modules which generate SFD signals, respectively, by using clocks provided as clock sources;
- a phase distributor for dividing a clock input from a clock generator into the clocks having different phases according to the multiple RF receiving modules, and providing the divided clocks to the multiple RF receiving unit as the clock sources;
- and
- a time measuring unit for measuring the SFD signals for use as data for location measurement.
A method of measuring a location of a transmitter by using a time difference of arrival (TDOA) of radio frequencies in a locating system comprising multiple receivers, one transmitter, and an RTLS engine, the method comprising steps of:
- (a) generating a clock by a clock generator;
- (b) dividing, by a phase distributor, the generated clock into clocks having different phases according to multiple RF receiving modules included in a multiple RF receiving unit, and providing the divided clocks to the multiple RF receiving unit as clock sources;
- (c) generating, by the multiple RF receiving unit, SFD signals through the RF receiving modules by using the phases of the clocks provided as the clock sources;
- and
- (d) measuring, by a time measuring unit, the SFD signals to be provided to the RTLS engine, thereby allowing the RTLS engine to measure the location of the transmitter by using the SFD signals.
A method of measuring a location of a transmitter by using a time difference of arrival (TDOA) of radio frequencies in a locating system comprising multiple receivers, one transmitter, and an RTLS engine, the method comprising steps of:
- (A) dividing, by a phase distributor, a clock generated by a clock generator into clocks having different phases according to multiple RF receiving modules included in a multiple RF receiving unit, and providing the divided clocks to the multiple RF receiving unit as clock sources;
- (B) generating, by the multiple RF receiving unit, SFD signals through the RF receiving modules by using the phases of the clocks provided as the clock sources;
- and
- (C) measuring, by a time measuring unit, the SFD signals to be provided to the RTLS engine, thereby allowing the RTLS engine to measure the location of the transmitter by using the SFD signals.
Dependencies are inferred from the claim text.