Patents by Inventor Isaac S. Blonder

Isaac S. Blonder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of and system for stereoscopic television
    Patent number: 5552821
    Abstract: A hybrid stereoscopic television method and system wherein a high definition television (HDTV) camera and a standard lower definition television camera (NTSC, PAL, etc.) are used as a hybrid stereoscopic pair, taking advantage of the physiological reaction of the brain of a viewer equipped with crossed polarizers or the like and viewing a screen of projecting complementarily polarized images from the cameras, imaging the composite images to be only the HDTV image, but in stereoscopic illusion.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 3, 1996
    Inventor: Isaac S. Blonder
  • Method of and apparatus for scrambling and decoding television and similar signals with wobbulating trapping
    Patent number: 4575753
    Abstract: Television or similar picture scrambling or the like wherein narrow trapping of the visual carrier is effected with one-direction FSK-FM modulated wobbulation of the visual carrier, preferably alternately at different multiples of the horizontal synchronizing frequency.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: March 11, 1986
    Assignee: Blonder-Tongue Laboratories, Inc.
    Inventors: Kantilal Mistry, Isaac S. Blonder
  • Special program decoding of scrambled subscription television transmissions
    Patent number: 4567516
    Abstract: This disclosure is concerned with a limited time operative decoder for special scrambled television program transmissions involving a voltage source for energizing the decoder of limited time effectiveness adapted to energize the decoder only during the limited time of the special scrambled television program.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: January 28, 1986
    Assignee: Blonder-Tongue Laboratories, Inc.
    Inventors: George Scherer, Walter Joswick, Isaac S. Blonder
  • Assymetrical folded half-dipole and linear extension antenna array
    Patent number: 4468674
    Abstract: This disclosure is concerned with a linear antenna array mounted on a conductive longitudinal boom, as in a Yagi-type array or the like, having a plurality of assymmetrical transversely extending folded half dipoles and linear extensions thereof disposed at successive longitudinally spaced locations along the boom, with the folded half dipoles of successive antennas extending from opposite sides of said boom.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: August 28, 1984
    Assignee: Blonder-Tongue Laboratories, Inc.
    Inventor: Isaac S. Blonder
  • Television subscriber apparatus
    Patent number: 4268860
    Abstract: This disclosure is concerned with modulating the tuning of a picture carrier frequency trap to insure audible distortion of the sound signal in a subscriber television system irrespective of variations in circuit parameters caused by temperature or other changing tuning adjustments of the trap.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: May 19, 1981
    Assignee: Blonder-Tongue Laboratories, Inc.
    Inventor: Isaac S. Blonder
  • Yagi-type antennas and method
    Patent number: 4218686
    Abstract: This disclosure is concerned with compensating for unsymmetrical antenna receiving or transmitting patterns caused by unbalanced driven element feed, by compensatory unsymmetrical interaction with parasitic director and/or reflector elements.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: August 19, 1980
    Assignee: Blonder-Tongue Laboratories, Inc.
    Inventor: Isaac S. Blonder