Circuit for generating an audible signal in tape recorders at the tape end

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4285021
SERIAL NO

06014741

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A circuit for generating an audible signal in a tape recorder as the tape approaches its end. The circuit includes an open loop extending between the recording amplifier and loudspeaker. The loop is closed by the metallic foil at the end of the tape when the foil bridges a pair of contacts. In the case where an exterior microphone is used with the recorder the speaker signal is electrically fed back to the amplifier.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • GRUNDIG E.M.V. ELEKTRO-MECHANISCHE VERSUCHSANSTALT. MAX GRUNDIG HOLLAND. STIFTUNG & CO KG, A CORP. OF THE FED. REP. OF GERMANY

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rimkus, Hans-Georg Nuremberg, DE 1 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation