Nothing Special   »   [go: up one dir, main page]

GB1196522A - Audio Induction System - Google Patents

Audio Induction System

Info

Publication number
GB1196522A
GB1196522A GB4829/68A GB482968A GB1196522A GB 1196522 A GB1196522 A GB 1196522A GB 4829/68 A GB4829/68 A GB 4829/68A GB 482968 A GB482968 A GB 482968A GB 1196522 A GB1196522 A GB 1196522A
Authority
GB
United Kingdom
Prior art keywords
loop
jan
input
inductively coupled
negative feedback
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
GB4829/68A
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.)
Dictaphone Corp
Original Assignee
Dictaphone Corp
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 Dictaphone Corp filed Critical Dictaphone Corp
Publication of GB1196522A publication Critical patent/GB1196522A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

1,196,522. Inductive signalling. DICTAPHONE CORP. 30 Jan., 1968 [31 Jan., J967]. No. 4829/68. Heading H4U. In an inductive signalling system a further loop is inductively coupled to the transmitting loop to develop a negative feedback voltage which is fed back to an input of the transmitter to improve the linearity of the system. As shown, audio signals from a tape recorder 12 are amplified at 14 and supplied via transmitting loop 16 to the inductively coupled receivers 20a &c. A second loop 18 adjacent the loop 16 develops negative feedback signals which are applied to the input of the amplifier 14. The system also reduces the effect of interfering signals.
GB4829/68A 1967-01-31 1968-01-30 Audio Induction System Expired GB1196522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61285267A 1967-01-31 1967-01-31

Publications (1)

Publication Number Publication Date
GB1196522A true GB1196522A (en) 1970-06-24

Family

ID=24454886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4829/68A Expired GB1196522A (en) 1967-01-31 1968-01-30 Audio Induction System

Country Status (1)

Country Link
GB (1) GB1196522A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138657A (en) * 1983-04-22 1984-10-24 Stephen John Irwin Near Field Signalling System
GB2178617A (en) * 1985-07-23 1987-02-11 Recoton Corp Tv stereo adaptor
GB2185364A (en) * 1985-12-13 1987-07-15 Terence Henry Leather Communication system
US4750206A (en) * 1986-10-28 1988-06-07 Recoton Corporation Adapter for TV stereo, SAP and auxiliary signals

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138657A (en) * 1983-04-22 1984-10-24 Stephen John Irwin Near Field Signalling System
GB2178617A (en) * 1985-07-23 1987-02-11 Recoton Corp Tv stereo adaptor
GB2178617B (en) * 1985-07-23 1989-08-09 Recoton Corp Tv stereo adaptor
GB2185364A (en) * 1985-12-13 1987-07-15 Terence Henry Leather Communication system
GB2185364B (en) * 1985-12-13 1990-05-16 Terence Henry Leather Communication system
US4750206A (en) * 1986-10-28 1988-06-07 Recoton Corporation Adapter for TV stereo, SAP and auxiliary signals

Similar Documents

Publication Publication Date Title
GB1480142A (en) System for communicating vehicle operation data between a ground station and a remote data processing station
GB1301920A (en)
GB1327132A (en) Power amplifying device for amplitude modulated high frequency signals
UA32415C2 (en) Radio frequency amplifier and a transmitter
GB766744A (en) Semi-conductor signal receiving system
GB1021347A (en) Audio actuated switches
GB1505290A (en) Audio signal processing apparatus
GB1196522A (en) Audio Induction System
GB1104103A (en) Improvements relating to data transmission apparatus
GB879606A (en) Improvements relating to inductive loop communication systems
GB1520085A (en) Amplifying circuit
GB1476516A (en) Automatic gain control circuit
GB983190A (en) Improvements in or relating to magnetic tape recording and playback systems
GB988886A (en) Magnetic recording and playback system
GB973582A (en)
GB959153A (en) Improvements in or relating to peak detector circuits
GB991506A (en) Improved oscillator-amplifier circuit for magnetic recording
GB1493079A (en) Transistor amplifiers
GB1129866A (en) Recording and playback system
GB1248209A (en) Improvements in or relating to modulation systems
GB1198100A (en) Signal Amplifying Arrangement
GB1054686A (en)
GB1055948A (en) Apparatus for the recording and playback of the vision and sound signals of a television transmission
GB636017A (en) Negative feedback applied to magnetic recording
JPS5624885A (en) Audio muting circuit

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees