Appeal No. 2002-1194
Application No. 08/534,808
radiopaging systems. Each transaction starts with a preamble to
permit bit synchronization and prepare the pagers for word
synchronization (section 3.1 Preamble). Codewords are
transmitted in batches each of which includes a synchronization
codeword, address codewords to identify each pager and message
codeword directly following the related address codeword (section
3.2 Batch Structure). POCSAG further discloses that the first
bit of the address codeword is always zero for distinguishing it
from a message codeword (section 3.3.2 Address Codewords) which
reads on the claimed value of zero for a preselected bit
position.
Additionally, as depicted in Fig. 2 of POCSAG, a plurality
of multiple bit messages in the form of a codeword format
includes different sections or partitions labeled address bits,
message bits, and parity check bits. However, contrary to the
Examiner’s position that guard band and command partitions are
also included in the codeword format of Fig. 2 (answer, page 6),
there is no teaching or suggestion in POCSAG that the codeword
format includes all the listed elements, in particular, the
claimed guard band and command partitions.
Furthermore, with regard to the last two steps in claim 1,
the examiner neither points to, nor do we find any, specific
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