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COMBINED VHF AND UHF DISPLAY SYSTEM

  • US 3,857,361 A
  • Filed: 12/19/1973
  • Issued: 12/31/1974
  • Est. Priority Date: 12/19/1973
  • Status: Expired due to Term
First Claim
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1. A channel indicia display system for use in television tuners or the like of the type having first and second frequency band tuners and separate rotary control shafts to condition each of the tuners, the display comprising a stationary mask having a transparent portion, a first movable mask having a plurality of active portions and a passive portion, said first mask being operably connected to one of the shafts to be driven thereby and means illuminating said first movable mask such that the portion thereof aligned with the transparent portion of said stationary mask is visible, a second movable mask, said second movable mask operably connected to the other of the shafts to be driven thereby, a fiber optic bundle having a light input end and a light output end, said light input end being situated adjacent said second mask and said light output end being situated in alignment with said transparent portion of said stationary mask with said first movable mask interposed therebetween, means for directing light through said second movable mask to said light input end, and switch means for de-energizing said illuminating means and energizing said light directing means when said passive portion of said first movable mask is aligned with said transparent portion of said stationary mask.

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