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:
Sep. 23, 2013
Filed:
Jan. 02, 2007
Seung Chan Bang, Daejon, KR;
Jae Ryong Shim, Ansan-Si, KR;
Ki-chul Han, Daejeon, KR;
Jung-im Kim, Daejeon, KR;
Tae-joong Kim, Daejeon, KR;
Seung Chan Bang, Daejon, KR;
Jae Ryong Shim, Ansan-Si, KR;
Ki-Chul Han, Daejeon, KR;
Jung-im Kim, Daejeon, KR;
Tae-Joong Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An orthogonal complex spreading method for a multichannel and an apparatus thereof are disclosed. The method includes the steps of complex-summing αWXwhich is obtained by multiplying an orthogonal Hadamard sequence Wby a first data Xof a n-th block and αWXwhich is obtained by multiplying an orthogonal Hadamard sequence Wby a second data Xof a n-th block; complex-multiplying αWX+jαWXwhich is summed in the complex type and W+jPWof the complex type using a complex multiplier and outputting as an in-phase information and quadrature phase information; and summing only in-phase information outputted from a plurality of blocks and only quadrature phase information outputted therefrom and spreading the same using a spreading code.