TW345653B - A simultaneous transmitting/receiving distance alarm - Google Patents

A simultaneous transmitting/receiving distance alarm

Info

Publication number
TW345653B
TW345653B TW085111766A TW85111766A TW345653B TW 345653 B TW345653 B TW 345653B TW 085111766 A TW085111766 A TW 085111766A TW 85111766 A TW85111766 A TW 85111766A TW 345653 B TW345653 B TW 345653B
Authority
TW
Taiwan
Prior art keywords
transmitter
pulse
receiving circuit
transmitting
circuit
Prior art date
Application number
TW085111766A
Other languages
Chinese (zh)
Inventor
Shyi-Shiun Chern
Original Assignee
Yi Lih Electric Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yi Lih Electric Ind Ltd filed Critical Yi Lih Electric Ind Ltd
Priority to TW085111766A priority Critical patent/TW345653B/en
Application granted granted Critical
Publication of TW345653B publication Critical patent/TW345653B/en

Links

Abstract

A simultaneous transmitting/receiving distance alarm consisted of one or more transmitter set and one receiver set, in which: a transmitter set comprises a pulse control circuit, a quartz crystal, a transmitting circuit and an antenna; a receiver set comprises an antenna, a receiving circuit, a control circuit, a quartz crystal, a receiving circuit switch control and a sounding body or a vibration body; which is characterized in using the transmitter set to send out a simple pulse signal at a fixed interval such that a receiver set capable of automatically aligning with the pulse sequence of the transmitter set can simultaneously cut off its receiving circuit when the transmitter stops transmitting within the time interval, and reopen its receiving circuit before the expected start of the generation of the next transmission pulse in order to receive the signal of the transmitter set; in which, when the transmitted pulse signals are not received for once or a continuous number of times, the wearer of the alarm will be notified by sound or vibration thereby achieving warning the operator.
TW085111766A 1996-09-26 1996-09-26 A simultaneous transmitting/receiving distance alarm TW345653B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW085111766A TW345653B (en) 1996-09-26 1996-09-26 A simultaneous transmitting/receiving distance alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW085111766A TW345653B (en) 1996-09-26 1996-09-26 A simultaneous transmitting/receiving distance alarm

Publications (1)

Publication Number Publication Date
TW345653B true TW345653B (en) 1998-11-21

Family

ID=58263835

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085111766A TW345653B (en) 1996-09-26 1996-09-26 A simultaneous transmitting/receiving distance alarm

Country Status (1)

Country Link
TW (1) TW345653B (en)

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees