CA903341A - Ultrasonic intrusion detection system signal processing circuit - Google Patents

Ultrasonic intrusion detection system signal processing circuit

Info

Publication number
CA903341A
CA903341A CA903341A CA903341DA CA903341A CA 903341 A CA903341 A CA 903341A CA 903341 A CA903341 A CA 903341A CA 903341D A CA903341D A CA 903341DA CA 903341 A CA903341 A CA 903341A
Authority
CA
Canada
Prior art keywords
signal processing
processing circuit
detection system
intrusion detection
system signal
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
CA903341A
Inventor
H. Lee John
E. Collins Thomas
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Publication date
Application granted granted Critical
Publication of CA903341A publication Critical patent/CA903341A/en
Expired legal-status Critical Current

Links

CA903341A Ultrasonic intrusion detection system signal processing circuit Expired CA903341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA903341T

Publications (1)

Publication Number Publication Date
CA903341A true CA903341A (en) 1972-06-20

Family

ID=36411216

Family Applications (1)

Application Number Title Priority Date Filing Date
CA903341A Expired CA903341A (en) Ultrasonic intrusion detection system signal processing circuit

Country Status (1)

Country Link
CA (1) CA903341A (en)

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