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:
Jun. 21, 1988
Filed:
Jun. 15, 1987
Applicant:
Inventors:
Rowland A Dunkley, Leighton Buzzard, GB;
Peter C Pugsley, Pinner, GB;
Assignee:
The De La Rue Company PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382-3 ; 382 13 ; 235379 ; 235380 ; 34082533 ; 34082534 ;
Abstract
A self contained writing pad unit (1) comprises a pressure pad (7) for sensing movement of a writing instrument over a contact surface (2) of the unit when a user writes a sign, for example a signature, either directly on the contact surface or on a writing medium (4) supported by the contact surface. Electronics (8) including a RAM and timing systems determine data relating to the original signature. A power supply (9) is provided to enable operation of the electronics (8). The unit (1) is portable and the data represents dynamic characteristic features of the writing signature.