Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2009-02-20
2011-10-04
Tarcza, Thomas (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
C342S357410, C342S357440, C342S357450, C342S357690, C370S336000
Reexamination Certificate
active
08031111
ABSTRACT:
A format for providing messages among GNSS apparatus includes providing a message identification block and a message body. The message identification block includes information specifying a message length and a message type block specifying a message type. Rather than sending all data from one apparatus to another, ambiguous observation data is sent to conserve bandwidth. At the sender a deconstruction of GNSS code and carrier observations using knowledge of the signal structure and constellation geometry, together with simplifications of atmospheric models, allows removal from the observation data of that information which can be implicitly understood or recreated by the recipient. This enables only the necessary information to be packed for transmission to the recipient.
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RTCA/DO-246B (Supersedes DO-246A)-“GNSS-Based Precision Approach Local Area Augmentation System (LAAS) Signal-in-Space Interface Control Document (ICD);” published Nov. 28, 2001 by RTCA, Inc.; pertinent 60 sheets provided (i.e., Foreword, Table of Contents, main text pp. 1-35, title sheets and Appendices A, B and G) of the 106 sheet document.
Albright Michael
Allison Michael Timo
Ferguson Kendall
Remondi Benjamin W.
Kilpatrick Townsend & Stockton LLP
Tarcza Thomas
Trimble Navigation Limited
Vigushin John B
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