The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 04, 1977
Filed:
Mar. 03, 1975
Yoshiyuki Ikushima, Hirakata, JA;
Sharp Kabushiki Kaisha, Osaka, JA;
Abstract
The video recording and reproducing system disclosed herein is adapted to perform record and/or playback in two selectable modes. In one mode of operation termed 'standard mode,' only one field of television video signal is recorded on or reproduced from each of the oblique tracks on a recording medium. In the other mode of operation termed 'period expansion mode,' n fields of the television video signal (n : multiple integer equal two, to or more than two) may be recorded on or reproduced from each of the oblique tracks. A switchover from the standard mode to the period expansion mode is achieved by a 1/n reduction of relative speed between the recording medium and rotary transducing head assembly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile