CA773737A - Double frequency detection system - Google Patents

Double frequency detection system

Info

Publication number
CA773737A
CA773737A CA773737A CA773737DA CA773737A CA 773737 A CA773737 A CA 773737A CA 773737 A CA773737 A CA 773737A CA 773737D A CA773737D A CA 773737DA CA 773737 A CA773737 A CA 773737A
Authority
CA
Canada
Prior art keywords
detection system
frequency detection
double frequency
double
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA773737A
Inventor
D. Carothers James
O. Halfhill Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Publication date
Application granted granted Critical
Publication of CA773737A publication Critical patent/CA773737A/en
Expired legal-status Critical Current

Links

CA773737A Double frequency detection system Expired CA773737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA773737T

Publications (1)

Publication Number Publication Date
CA773737A true CA773737A (en) 1967-12-12

Family

ID=36221021

Family Applications (1)

Application Number Title Priority Date Filing Date
CA773737A Expired CA773737A (en) Double frequency detection system

Country Status (1)

Country Link
CA (1) CA773737A (en)

Similar Documents

Publication Publication Date Title
CA773737A (en) Double frequency detection system
AU425415B2 (en) Detection system
CA758720A (en) Object detection system
CA762613A (en) Object detection system
AU414171B2 (en) Object detection system
AU4136168A (en) Detection system
CA751578A (en) Sound detection system
CA759162A (en) Frequency comparing systems
CA765910A (en) Synchronization detection system
CA772775A (en) Synchronous detection system
AU2731567A (en) Object detection system
CA764622A (en) Low-scene-brightness signal
CA752548A (en) Maximum signal detector
CA734617A (en) Object detection system
AU440299B2 (en) Alarm system
CA756260A (en) Alarm system
CA759616A (en) Alarm system
CA751579A (en) Intrusion detection system
CA749067A (en) Moving object detection system
CA724327A (en) Presence detection system
CA754246A (en) Turn signal
AU412994B2 (en) Monitoring system
CA766869A (en) Dyeboarding system
CA756266A (en) Meter-controlling system
AU446950B2 (en) Signal translating system