United States Patent 4,982,181
|United States Patent ||4,982,181|
|Yianilos||Jan. 1, 1991|
|Inventors: ||Yianilos; Peter N.
(Fort Lauderdale, FL).
|Assignee: ||Franklin Electronic Publishers, Incorporated
(Mt. Holly, NJ).
|Appl. No.: ||386,279|
|Filed: ||Jul. 28, 1989|
|U.S. Cl.:||340/756; 340/752; 340/765; |
|Field of Search:||340/756, 752, 765, 760, 762; 40/447, 448|
U.S. Patent Documents
|3,827,043||Jul., 1974||Maezawa|| 340/756|
|4,342,031||Jul., 1982||Lapeyre|| 340/765|
Primary Examiner: Brier; Jeffery A.
Assistant Examiner: Wu; Xiao Min
Attorney, Agent or Firm: McAulay Fisher Nissen & Goldberg
Individual character templates for an alphanumeric display are provided.
Each individual character template includes an M row by N column pixel
matrix. The M row by N column pixel matrix provides MN pixels. Each of the
N columns has a generally vertical shallow "S" shaped format. The pixels
along the center rows of the pixel matrix are substantially square and the
pixels along the upper and lower rows of the pixel matrix have corners
that define a parallelogram and vertical edges that are curved. The
template is energized using an electrode trace arrangement which has a
plurality of horizontal traces and a plurality of approximately vertical
sinuous traces. A segment of each of the vertical tracks within any
character template has a shallow "S" shaped form. The first and second
columnar trace segments in any given character template is connected to
the next to last and last columnar trace segments of the preceding
character template and the next lowest row.
5 Drawing Figures