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:
May. 10, 2011
Filed:
Jul. 15, 2008
Torsten Gogolla, Schaan, LI;
Andreas Winter, Feldkirch, AT;
Helmut Seifert, Serba, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A hand-held laser distance measuring device () with pulse reflection mixing includes a control device () for calculating the distance (D) to a measurement object () over at least one determinable periodic, with a pulse repetition frequency (f), time difference (τ) between a measurement pulse () reflected at the measurement object () and a reference pulse () of an optically emitted transmitting pulse () traveling over a reference distance () within the device, a local oscillator () for generating the transmitting pulse () at the pulse repetition frequency (f), at least one delay circuit () which can be controlled by the control device (), is arranged between the local oscillator () and a light detector () and/or a light transmitter (), and generates a delay between the scanning pulses () and the transmitting pulses () in order to scan the measurement pulse () and the reference pulse ().