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:
Aug. 08, 1995
Filed:
Dec. 27, 1993
Victor H Cutler, Jr, Mesa, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A communication system (10) communicates real time data through a channel (26) that imposes delays of variable duration on signals propagating therethrough. The channel (26) may be established between a fastmoving satellite (14) in an orbit (28) around the earth and a subscriber unit (24) located proximate the earth' surface. The real time data are generated synchronously (124) at the subscriber unit (24) with a TDM frame (40) established by the satellite (14). The data are delayed in a variable delay circuit (68) before transmission through the channel (26). The duration of the delay imposed by the delay circuit (68) varies in response to timing data received from the satellite (14). The timing data describe a changing propagation delay for the channel (26) and changing definitions for TDM time slots (42', 44') Data received at the subscriber unit (24) are delayed in another variable delay circuit (76). Both gradual and abrupt timing characteristics of the channel (26) are absorbed by the variable timing circuits (68, 76).