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:
Jan. 01, 2013
Filed:
Oct. 24, 2008
Tae Wook Kang, Daejeon, KR;
IN Gi Lim, Daejeon, KR;
Hyung IL Park, Daejeon, KR;
Sung Weon Kang, Daejeon, KR;
Kyung Soo Kim, Daejeon, KR;
Sung Eun Kim, Seoul, KR;
Jung Bum Kim, Daejeon, KR;
Jin Kyung Kim, Daejeon, KR;
Chang Hee Hyoung, Daejeon, KR;
Jung Hwan Hwang, Daejeon, KR;
Ki Hyuk Park, Daejeon, KR;
Jae Hoon Shim, Daejeon, KR;
Hey Jin Myoung, Seoul, KR;
Tae Wook Kang, Daejeon, KR;
In Gi Lim, Daejeon, KR;
Hyung Il Park, Daejeon, KR;
Sung Weon Kang, Daejeon, KR;
Kyung Soo Kim, Daejeon, KR;
Sung Eun Kim, Seoul, KR;
Jung Bum Kim, Daejeon, KR;
Jin Kyung Kim, Daejeon, KR;
Chang Hee Hyoung, Daejeon, KR;
Jung Hwan Hwang, Daejeon, KR;
Ki Hyuk Park, Daejeon, KR;
Jae Hoon Shim, Daejeon, KR;
Hey Jin Myoung, Seoul, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
There is provided a communication method using a human body as a medium. A modulation apparatus using a frequency selective baseband according to an aspect of the invention may include: a serial-to-parallel conversion unit converting serial data supplied from an upper layer into parallel data consisting of M+1 number of data input bits; and a frequency selective spreader selecting one subgroup among a plurality of subgroups obtained by dividing 2number (where N is a positive integer) of spreading codes used for frequency spreading by 2(where M is a positive integer, and M<N is satisfied), and selecting and outputting one spreading code among 2number of spreading codes of the one subgroup by using the M number of data input bits, and spreading codes obtained by performing bit circular shifts on the 2number of spreading codes. Accordingly, the number of transmission data is increased to improve a transmission data rate, strong interference induced from users and other electronic devices is reduced, and stable human body communication having low power consumption is performed.