NL7801649A - Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals - Google Patents

Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals

Info

Publication number
NL7801649A
NL7801649A NL7801649A NL7801649A NL7801649A NL 7801649 A NL7801649 A NL 7801649A NL 7801649 A NL7801649 A NL 7801649A NL 7801649 A NL7801649 A NL 7801649A NL 7801649 A NL7801649 A NL 7801649A
Authority
NL
Netherlands
Prior art keywords
receiver
distinguish
transmission system
measured values
data transmission
Prior art date
Application number
NL7801649A
Other languages
Dutch (nl)
Original Assignee
Enku Medical Systems B V
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 Enku Medical Systems B V filed Critical Enku Medical Systems B V
Priority to NL7801649A priority Critical patent/NL7801649A/en
Publication of NL7801649A publication Critical patent/NL7801649A/en

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0006—ECG or EEG signals
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Physiology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

In the data transmission system, measured values are conveyed over a short distance. It consists of an IR radiation source acting as a transmitter. The IR beam is modulated by the data. There is a receiver which processes the signals received. The receiver (5) is fitted with elements which can distinguish between radiation from the transmitter and the interference originating from other sources. The receiver has two sensitive components, one of which is tuned to the frequency of the transmitter and the other is tuned at a different frequency. The processing of the data received by the first element is suppressed when the other element is receiving.
NL7801649A 1978-02-14 1978-02-14 Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals NL7801649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7801649A NL7801649A (en) 1978-02-14 1978-02-14 Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7801649A NL7801649A (en) 1978-02-14 1978-02-14 Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals

Publications (1)

Publication Number Publication Date
NL7801649A true NL7801649A (en) 1979-08-16

Family

ID=19830328

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7801649A NL7801649A (en) 1978-02-14 1978-02-14 Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals

Country Status (1)

Country Link
NL (1) NL7801649A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644271A1 (en) * 1989-03-07 1990-09-14 Liger Coded infrared control method and device
EP0402620A2 (en) * 1989-06-10 1990-12-19 Cat Eye Co., Ltd. Wireless transmitting-receiving apparatus for a bicycle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644271A1 (en) * 1989-03-07 1990-09-14 Liger Coded infrared control method and device
EP0402620A2 (en) * 1989-06-10 1990-12-19 Cat Eye Co., Ltd. Wireless transmitting-receiving apparatus for a bicycle
EP0402620A3 (en) * 1989-06-10 1992-08-05 Cat Eye Co., Ltd. Wireless transmitting-receiving apparatus for a bicycle

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Legal Events

Date Code Title Description
BV The patent application has lapsed