AU3012792A - Infrared telephone with handset and base unit - Google Patents

Infrared telephone with handset and base unit

Info

Publication number
AU3012792A
AU3012792A AU30127/92A AU3012792A AU3012792A AU 3012792 A AU3012792 A AU 3012792A AU 30127/92 A AU30127/92 A AU 30127/92A AU 3012792 A AU3012792 A AU 3012792A AU 3012792 A AU3012792 A AU 3012792A
Authority
AU
Australia
Prior art keywords
handset
base unit
infrared telephone
telephone
infrared
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.)
Abandoned
Application number
AU30127/92A
Inventor
Hans-Josef Nye
Curt G. Reichert
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.)
SenSys AG
Original Assignee
SenSys AG
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
Priority claimed from DE19924220289 external-priority patent/DE4220289A1/en
Priority claimed from DE19924222694 external-priority patent/DE4222694A1/en
Application filed by SenSys AG filed Critical SenSys AG
Publication of AU3012792A publication Critical patent/AU3012792A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • 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
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Telephone Set Structure (AREA)
  • Mobile Radio Communication Systems (AREA)
AU30127/92A 1991-12-11 1992-12-11 Infrared telephone with handset and base unit Abandoned AU3012792A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE4140823 1991-12-11
DE4140823 1991-12-11
DE4220289 1992-06-20
DE19924220289 DE4220289A1 (en) 1992-06-20 1992-06-20 Infrared telephone system with handset and base unit
DE4222694 1992-07-10
DE19924222694 DE4222694A1 (en) 1991-12-11 1992-07-10 Cordless telephone with IR link between handset and fixed station - has variable-frequency oscillator at each end for modulation and level control of respective IR transmitters

Publications (1)

Publication Number Publication Date
AU3012792A true AU3012792A (en) 1993-06-17

Family

ID=27203184

Family Applications (1)

Application Number Title Priority Date Filing Date
AU30127/92A Abandoned AU3012792A (en) 1991-12-11 1992-12-11 Infrared telephone with handset and base unit

Country Status (9)

Country Link
EP (1) EP0558812A3 (en)
JP (1) JPH066430A (en)
KR (1) KR930015406A (en)
AR (1) AR247963A1 (en)
AU (1) AU3012792A (en)
BR (1) BR9204996A (en)
CA (1) CA2085047A1 (en)
FI (1) FI925606A (en)
MX (1) MX9207193A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1277850B1 (en) * 1995-01-18 1997-11-12 Edico Srl ENTERTAINMENT EQUIPMENT, SUCH AS A RECEIVER AND / OR REPRODUCER OF SIGNALS, IN PARTICULAR TELEVISION, WITH REMOTE CONTROL
EP1811660B1 (en) * 1999-03-30 2013-10-09 Qualcomm Incorporated Method and apparatus for automatically adjusting speaker gain within a mobile telephone

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823931A1 (en) * 1978-05-31 1979-12-06 Siemens Ag Telephone subscriber's appts. using PPM IR radiation - transmits voice signals from handset to main unit connected to telephone line obviating extension wires
GB2120905B (en) * 1982-01-25 1986-03-19 Viking Phone Co Inc Cordless telephone
FI86937C (en) * 1989-11-01 1992-10-26 Salora Myynti Oy TELEFONSYSTEM
DE4005517A1 (en) * 1990-02-22 1991-09-05 Sensys Ag Bidirectional signal transmission system using IR light - has identical devices for simultaneous transmission in both directions

Also Published As

Publication number Publication date
EP0558812A3 (en) 1995-04-05
FI925606A (en) 1993-06-12
MX9207193A (en) 1994-03-31
AR247963A1 (en) 1995-04-28
JPH066430A (en) 1994-01-14
FI925606A0 (en) 1992-12-10
KR930015406A (en) 1993-07-24
BR9204996A (en) 1993-06-15
EP0558812A2 (en) 1993-09-08
CA2085047A1 (en) 1993-06-12

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