KR930022509U - Phone usage detection circuit - Google Patents

Phone usage detection circuit

Info

Publication number
KR930022509U
KR930022509U KR2019920004792U KR920004792U KR930022509U KR 930022509 U KR930022509 U KR 930022509U KR 2019920004792 U KR2019920004792 U KR 2019920004792U KR 920004792 U KR920004792 U KR 920004792U KR 930022509 U KR930022509 U KR 930022509U
Authority
KR
South Korea
Prior art keywords
detection circuit
phone usage
usage detection
phone
circuit
Prior art date
Application number
KR2019920004792U
Other languages
Korean (ko)
Other versions
KR950004455Y1 (en
Inventor
김기열
Original Assignee
삼성전자 주식회사
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 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to KR92004792U priority Critical patent/KR950004455Y1/en
Publication of KR930022509U publication Critical patent/KR930022509U/en
Application granted granted Critical
Publication of KR950004455Y1 publication Critical patent/KR950004455Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
KR92004792U 1992-03-26 1992-03-26 In-use display circuit KR950004455Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92004792U KR950004455Y1 (en) 1992-03-26 1992-03-26 In-use display circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92004792U KR950004455Y1 (en) 1992-03-26 1992-03-26 In-use display circuit

Publications (2)

Publication Number Publication Date
KR930022509U true KR930022509U (en) 1993-10-16
KR950004455Y1 KR950004455Y1 (en) 1995-06-01

Family

ID=19330798

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92004792U KR950004455Y1 (en) 1992-03-26 1992-03-26 In-use display circuit

Country Status (1)

Country Link
KR (1) KR950004455Y1 (en)

Also Published As

Publication number Publication date
KR950004455Y1 (en) 1995-06-01

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20060519

Year of fee payment: 12

EXPY Expiration of term