The impact of technology on the design of telephone switching systems has never been greater than it is today.
Code division is used as a means of making a multiplicity of input channels orthogonal (or nearly so) so that any input to a CDM switch that uses this orthogonalizing scheme can be switched to any
This system, already described [Abstract 1939B01196], provides 12 channels on a single pair of wires in addition to 3 already derived from a type C system and the normal voice-frequency circuit.
The intelligibility of syllables whose cepstral trajectories were temporally filtered was measured.
No abstract provided.
Computation has been invaluable in gaining insight into the behavior of a variety of mathematical problems in combinatorics, coding theory, algebra, and other fields.
We introduce the arrow product, a new generating function technique for directed graph enumeration.
Symbolic verification based on Binary Decision Diagrams (BDDs) has proven to be a powerful technique for ensuring the correctness of digital hardware.
Symbolic substitution is a method of computing based on parallel binary pattern replacement, that can be implemented with simple optical components and regular free-space interconnection schemes.
We study the verification of properties of communication protocols modeled by a finite set of finite-state machines that communicate by exchanging messages via unbounded FIFO queues.
