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. 01, 1999
Filed:
Jan. 30, 1998
Herbert L Schachter, Stoneham, MA (US);
Paul D'Entrement, Lexington, MA (US);
David Levy, Cambridge, MA (US);
Michael Chiu, Somerville, MA (US);
Other;
Abstract
A durable, rigid, low-cost device to sense an impact of a ball over a wide area and to provide response to a user that said impact has occurred. The sensing mechanism is a low-cost acoustic sensor, acoustically coupled to an essentially single sheet of plastic material. Sensor electronics filter the input and measure amplitude to determine if a valid hit has occurred. If so, the device reports an activate signal to the response electronics that in turn provide feedback to the user by playing a digitally recorded audio message, recorded specifically for the event. Variously, the activate signal may be transmitted to a remote device that contains the response electronics.