Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
169 words
In a time division multiple access (TDMA) communications system having a fixed frame rate determined by frame reference pulses, the improvement comprising, a. first means adapted to receive information bits at a rate which is not synchronized to said fixed frame rate; b. means for detecting the number of information bits received during each said fixed frame; c. means responsive to said detecting means and to said received information bits for temporarily storing the information bits received each frame; d. means responsive to said detecting means for generating and temporarily storing a code word identifying the number of information bits received and stored in a frame; and e. means responsive to a predetermined number of clock pulses synchronized to said frame rate and occurring each frame, for reading out from said code word storing means and said information bit storage means, a fixed number of bits, dependent upon the number of said clock pulses, said fixed number of bits always including all information bits stored during the previous frame.
Claim 2
Dependent Claim
169 words
In a time division multiple access (TDMA) communications system having a fixed frame rate determined by frame reference pulses, the improvement comprising, a. first means adapted to receive information bits at a rate which is not synchronized to said fixed frame rate; b. means for detecting the number of information bits received during each said fixed frame; c. means responsive to said detecting means and to said received information bits for temporarily storing the information bits received each frame; d. means responsive to said detecting means for generating and temporarily storing a code word identifying the number of information bits received and stored in a frame; and e. means responsive to a predetermined number of clock pulses synchronized to said frame rate and occurring each frame, for reading out from said code word storing means and said information bit storage means, a fixed number of bits, dependent upon the number of said clock pulses, said fixed number of bits always including all information bits stored during the previous frame.
Claim 3
Dependent Claim
58 words
A system as claimed in claim 1 wherein said means for generating and storing a code word comprises means responsive to said detecting means for generating said code word only in response to said detecting means detecting a number of information bits per frame different than preset number corresponding to the nominal number of information bits per frame.
Claim 4
Dependent Claim
53 words
A system as claimed in claim 2 wherein said means for reading out comprises means responsive to a first group of said clock pulses for reading out from said code storage means less than the entire code word, wherein said stored code word is read out and submultiplexed over a number of frames.
Claim 5
Dependent Claim
45 words
A system as claimed in claim 1 wherein said means for generating and storing a code word comprises means responsive to said detecting means for generating and storing a code word each frame identifying the number of information bits received and stored during said frame.
Claim 6
Dependent Claim
59 words
A system as claimed in claim 4 wherein said read out means comprises means responsive to a number of said clock pulses equal in number to the number of bits in said code word for reading out said complete code word, wherein a code word is completely read out each frame and included in said fixed number of bits.
Claim 7
Dependent Claim
71 words
A system as claimed in claim 1 wherein said detecting means comprises, a. a counter adapted to count clock pulses occurring at the information bit rate, and provide a first output pulse when said counter reaches a predetermined number, x; b. a phase comparator responsive to said first pulses and said frame reference pulses for providing an output representing the out-of-phase condition of said first pulses and said frame reference pulses.
Claim 8
Dependent Claim
34 words
A system as claimed in claim 6 further comprising means responsive to said code generating means for causing said counter to recycle at a count corresponding to the number represented by said code word.
Claim 9
Dependent Claim
95 words
A system as claimed in claim 6 wherein said information bit storAge means comprises: a. first and second buffer storage means, each adapted to write in information bits applied thereto when write-enabled and to read out their contents when read-enabled, and b. read-write enabling means responsive to the recycling of said counter and said predetermined number of clock pulses for alternately write-enabling said first and second buffer storage means and read-enabling said first and second storage means each recycle of said counter, one of said buffer storage means being read-enabled while the other is write-enabled.
Claim 10
Dependent Claim
78 words
A system as claimed in claim 8 further comprising: a. receiver storage means; b. means responsive to said code word in said fixed number of bits for gating only the information bits in said fixed number of bits into said receiver storage means; and c. means responsive to said code word and to said frame reference pulses for reading out the information bits in said receiver storage means at a rate corresponding to the said information bit rate.