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:
Mar. 14, 2000
Filed:
Jan. 08, 1997
Kari Pehkonen, Oulu, FI;
Nokia Mobile Phones, Ltd., Salo, FI;
Abstract
The invention relates to a data transmission method and equipment for encoding and decoding a signal, comprising on the encoding side at least two parallel encoders (600, 602) and on the decoding side at least two parallel decoders (700, 702). In order to provide efficient coding, on the encoding side of the equipment each parallel encoder (600, 602) comprises a number of registers (612a-618a) connected in tandem, and a number or adding means (622a-626a) that add the outputs of the registers (612a-618a) to the data, and a mapping means (628a) the input of which consists of the outputs of the registers (612a-618a) and the output (608) of which comprises a Walsh symbol selected on the basis of inputs of a converter means (628a), and on the decoding side of the equipment the input (704, 706) of each parallel decoder (700, 702) is the received Walsh symbol and the reliability information (718, 720) about the symbol decision, received from the other parallel decoders.