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:
Feb. 11, 2014
Filed:
Nov. 24, 2008
Applicant:
Roger Kihlberg, Värnamo, SE;
Inventor:
Roger Kihlberg, Värnamo, SE;
Assignee:
3M Svenska AB, Sollentuna, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for wireless digital radio communication is put into effect on a first number K of channels between a second number A of users. All A of the users are permitted to listen on one and the same listening channel. A limited number B of channels is used for outgoing speech communication. The communication on these channels is transmitted to all A users on the listening channel. A communication apparatus which utilizes this method includes at least one stationary base unit () and at least A handsets ().