×

Signal recording/reproducing apparatus

  • US 20040143771A1
  • Filed: 01/13/2004
  • Published: 07/22/2004
  • Est. Priority Date: 10/21/1998
  • Status: Active Grant
First Claim
Patent Images

1. A signal recording/reproducing apparatus including a first power source unit which generates necessary electric power signals from a commercial power source, a second power source unit which generates a necessary electric power signal from a battery, a recording signal processing unit, and a reproduced signal processing unit;

  • said apparatus comprising;

    a time measuring instrument which is supplied with the electric power from said second power source unit; and

    a charging unit which charges said battery with the electric charges;

    wherein whenever said time measuring instrument measures a predetermined time, the generation of the electric power signals from said first power source unit is started, and said battery is charged with the electric charges by said charging unit.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×