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:
Dec. 20, 2005
Filed:
Jun. 28, 2001
Kyung-ha Lee, Seoul, KR;
Young-jin Kim, Songnam-shi, KR;
Sung-joo Kim, Suwon-shi, KR;
Abstract
There is provided a digital data receiver for recovering at least one message word signal from a digital data frame. The digital receiver includes a digital FM demodulator for receiving frequency modulated signals, and for demodulating a dotting sequence signal, a word sync signal and a message word signal of each sub-frame which is in digital data frame, a dotting detector for detecting a dotting sequence signal of at least one sub-frame among the signals demodulated by the digital FM demodulator, based upon a predetermined signal which is shorter than the length of each dotting sequence signal of the each sub-frame, detecting means for determining the termination of receiving of the digital data frame after the dotting detector detects the dotting sequence signal, and for detecting a new digital data frame followed by the digital data frame; and a message processor means for recovering a message word signal in the digital signal frame which is related to the dotting sequence signal detected by the dotting detector. A method for recovering at least one message word signal from a digital data frame is also disclosed.