Patents Assigned to Electro-Sound, Inc.
  • Patent number: 4872070
    Abstract: A system and method for high speed video tape reproduction wherein an optical disc player having two read heads located on opposite sides of the master disc is used to scan the individual tracks of the disc and develop electrical signals representing the data stored thereon. The two read heads are configured so that one head scans and reads even numbered tracks of the disc while the second head simultaneously scans and reads odd numbered tracks of the disc, which is being rotated at twice the standard rotational speed. The output electrical signals are then mixed and separated so that all data stored in a first portion of each track is formed into a first stream of electrical signals and all data stored in a second portion of each track is formed into a second stream of electrical signals. The two streams of electrical signals are then processed and delayed, as is necessary, so that the signals can be recorded by a video tape recorder having four write heads located around the circumference of its head drum.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: October 3, 1989
    Assignee: Electro Sound, Inc.
    Inventors: J. Carl Cooper, John P. Yu
  • Patent number: 4866543
    Abstract: A multiple slave video tape reproduction system comprising: a master, including an optical disc player having two read heads located on opposite sides of the master disc for scanning the individual tracks of the disc and developing electrical signals representing the data stored, a timing means for coordinating the output sequence of the developed signals, and a processing means for configuring the developed signals so that they may be recorded onto a video tape; and a plurality of slave recorders, including a head drum, having four write heads located at 90 degree angles to each other around the circumference of the head drum whereby oppositely located heads form an electrically connected head pair, and mechanical and electrical components for moving and controlling the guide drum and tape.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: September 12, 1989
    Assignee: Electro Sound, Inc.
    Inventors: J. Carl Cooper, John P. Yu
  • Patent number: 4589608
    Abstract: A multistation cassette loading apparatus 10 loads a predetermined amount of blank or pre-recorded magnetic tape into cassettes 12. Cassettes to be loaded are oriented and positioned on a conveyor 16 by an automatic feed mechanism 14. A loading mechanism 18 transfers each cassette to the first station of a four station turntable 20. At the first station, the leader tape 320 of the cassette is extracted. At the second station, the leader is oriented in a splice block 24 and is held in place by vacuum. The leader tape is cut into two sections of equal length by a cutter 34. At the third station, one section of the leader tape is spliced to the end of a reel of supply tape 38 by a spicer 40. A measured amount of supply tape is wound into the cassette at a constant tension. A cushion of air blown around the reel of tape in the cassette during winding reduces frictional heating from tape drag. After the measured amount of tape is loaded into the cassette, the supply tape is cut by another cutter 46.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: May 20, 1986
    Assignee: Electro Sound, Inc.
    Inventors: George D. Rehklau, Lee A. Cotterill, Robert Z. Langevin
  • Patent number: 4512527
    Abstract: A multistation cassette loading apparatus 10 loads a predetermined amount of blank or pre-recorded magnetic tape into cassettes 12. Cassettes to be loaded are oriented and positioned on a conveyor 16 by an automatic feed mechanism 14. A loading mechanism 18 transfers each cassette to the first station of a four station turntable 20. At the first station, the leader tape 320 of the cassette is extracted. At the second station, the leader is oriented in a splice block 24 and is held in place by vacuum. The leader tape is cut into two sections of equal length by a cutter 34. At the third station, one section of the leader tape is spliced to the end of a reel of supply tape 38 by a splicer 40. A measured amount of supply tape is wound into the cassette at a constant tension. A cushion of air blown around the reel of tape in the cassette during winding reduces frictional heating from tape drag. After the measured amount of tape is loaded into the cassette, the supply tape is cut by another cutter 46.
    Type: Grant
    Filed: October 22, 1982
    Date of Patent: April 23, 1985
    Assignee: Electro-Sound, Inc.
    Inventors: George D. Rehklau, Lee A. Cotterill, Robert Z. Langevin
  • Patent number: 4387843
    Abstract: A loop bin for use with tape transport apparatus including a front wall 50 and rear wall 52 separated by slightly more than the width of the tape to be stored, a pair of entry and exit openings at the top, a resilient distributing arm 34 located proximate the entry opening a compliant length of flexible material 36 suspended from each side of the bin and forming a catenary configured bin bottom, and a compliant damper loop 38 disposed midway down the bin and adjacent the exit side thereof for damping exiting tape tension fluctuations and assisting in the stacking of tape within the bin.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: June 14, 1983
    Assignee: Electro-Sound Inc.
    Inventor: George D. Rehklau
  • Patent number: 4113196
    Abstract: Apparatus for loading tape onto the hub of a magnetic tape cartridge spool and including a tape supply for supplying a continuous strip of tape, a carriage for locating the cartridge at a first position, a hub drive for turning the spool to wind tape thereon, a tape cutter for cutting the length of tape from the continuous strip, a flyer carried by the hub drive for releasably holding the ends of the tape wound upon the hub, a tape supply arm for moving the lead end of the strip into contact with the flyer, for guiding the strip as it is wound onto the hub and for aligning and holding the strip relative to the cutter, a take-up loop arm for measuring out a selected loop length of the tail portion of the length of tape wound upon the hub, for holding the tape as it is cut by the cutter and for moving the tail end of the length into contact with the flyer and positioning it in abutting relationship with the lead end held thereby, a splicer for applying a segment of splicing tape across the abutted lead and tail
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: September 12, 1978
    Assignee: Electro-Sound, Inc.
    Inventor: George D. Rehklau