Signal reproducing apparatus

• US 5,247,293 A
• Filed: 05/08/1991
• Issued: 09/21/1993
• Est. Priority Date: 05/11/1990
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Nakagawa, Noboru
• Primary Examiner(s): Yusko, Donald J.
• Assistant Examiner(s): Hill, Andrew M.
• Application Number:
  US07/696,963
• Time in Patent Office: 867 Days
• Field of Search: 340/825.25, 340/825.69, 340/825.72, 455/66, 455/88, 455/100, 455/351, 455/45, 455/70, 455/159.1, 379/63, 381/25, 381/98, 381/104, 381/105, 359/184, 359/189, 369/24, 369/32, 369/33
• US Class Current: 340/4.42
• CPC Class Codes: G11B 15/023 remotely controlled
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D

Abstract

A signal reproducing apparatus operating on a wireless basis and having a status signal multiplexed with audio signals and transmitted to a receiver containing a display, the status signal indicating the current operating status of a recording medium player. On receiving the status signal, the display indicates the current operating status of the recording medium player so that the user may accordingly control the player from a distance without the intervention of wires.

Claims

1. A signal reproducing apparatus producing audio signals for listening by a user on a wireless basis, said apparatus comprising:

a reproducing section for reproducing audio signals in the form of left-hand and right-hand audio channels from a recording medium including

mode signal generating means for generating mode signals indicating a current operating mode of said reproducing section including

first and second signal generators each producing a respective output signal and switch means receiving output signals from said first and second signal generators for selectively providing said mode signals for injection into said left-hand audio channel and said right-hand audio channel and

modulating means for modulating said mode signals from said switch means onto said audio channels;

a transmitting section connected to said reproducing section for transmitting on a wireless basis said modulated audio and mode signals from said reproducing section;

an audio signal receiving section remotely located from said reproducing section for receiving said transmitted modulated audio and mode signals from said transmitting section and including display means for displaying a current operating mode of said reproducing section in accordance with said transmitted mode signals;

earphones electrically connected to said audio signal receiving section for producing said audio signals for listening by the user;

a remote control section, attached to and connected with said audio signal receiving section, including a plurality of keys actuatable by a user for selecting an operating mode of said reproducing section by transmitting remote control signals to said reproducing section; and

a control signal receiving section included with said reproducing section for receiving said remote control signals from said remote control section and feeding said control signals to said mode signal generating means and to said reproducing section for controlling said reproducing section in accordance therewith.

2. The signal reproducing apparatus of claim 1, wherein said transmitting section includes a local oscillator producing a local oscillation signal and further including a left-hand channel mixer and a right-hand channel mixer for combining said local oscillation signal with said left-hand audio channel and said right-hand audio channel from said modulating means.

3. The signal reproducing apparatus of claim 2, wherein said local oscillator has a frequency of 88.67 MHz.

4. The signal reproducing apparatus of claim 1, wherein said first signal generator is adapted to produce an output signal with a frequency higher than the audio frequency band, and said second signal generator is adapted to produce an output signal with a frequency lower than the audio frequency band.