JPS53110308A - Multi-frequency signal receiving system - Google Patents

Multi-frequency signal receiving system

Info

Publication number
JPS53110308A
JPS53110308A JP2572877A JP2572877A JPS53110308A JP S53110308 A JPS53110308 A JP S53110308A JP 2572877 A JP2572877 A JP 2572877A JP 2572877 A JP2572877 A JP 2572877A JP S53110308 A JPS53110308 A JP S53110308A
Authority
JP
Japan
Prior art keywords
frequency signal
signal receiving
receiving system
bpf
discriminating
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.)
Pending
Application number
JP2572877A
Other languages
Japanese (ja)
Inventor
Kenji Nakayama
Toshihiko Mizukami
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2572877A priority Critical patent/JPS53110308A/en
Publication of JPS53110308A publication Critical patent/JPS53110308A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Abstract

PURPOSE:To make a receiver small-size without requiring BPF by discriminating the state of low and high-frequency components by using input signal sampling.
JP2572877A 1977-03-08 1977-03-08 Multi-frequency signal receiving system Pending JPS53110308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2572877A JPS53110308A (en) 1977-03-08 1977-03-08 Multi-frequency signal receiving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2572877A JPS53110308A (en) 1977-03-08 1977-03-08 Multi-frequency signal receiving system

Publications (1)

Publication Number Publication Date
JPS53110308A true JPS53110308A (en) 1978-09-27

Family

ID=12173853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2572877A Pending JPS53110308A (en) 1977-03-08 1977-03-08 Multi-frequency signal receiving system

Country Status (1)

Country Link
JP (1) JPS53110308A (en)

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