Communications: directive radio wave systems and devices (e.g. – Clutter elimination – Mti
Patent
1986-08-15
1989-05-30
Buczinski, Stephen C.
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
Mti
342135, 342195, 377 33, 377 44, 377 39, 455 78, H03K 1726, H03K 2100, H04B 144
Patent
active
048354805
ABSTRACT:
An electronic signal synchronization apparatus useful with radars and other electronic systems requiring synchronizing signals provides, for a range of N pulses, M sets of synchronizing signals which occur at M different range event pulse counts. The signal synchronization apparatus comprises a microprocessor and a synchronizer, the latter including a range pulse counter, a range memory, an event counter and an event memory. The range memory, preferably a RAM, is connected for outputting an event count enabling signal each time the range counter reaches an event pulse count. The event counter increments one count each time a count enabling signal is received from the range memory. At each event count, the event memory outputs the corresponding set of synchronizing signals. At the Nth range pulse count, the event memory provides an END OF RANGE signal which resets the range and event counters to thereby enable the counters to repeat the counting as many times as is necessary. The microprocessor provides the capability for programming both the events and the timing of the events. Provisions are included whereby the microprocessor controls the synchronizer in LOAD, OPERATE and ERASE & STOP modes of operation.
REFERENCES:
patent: 2862114 (1958-11-01), Solomon
patent: 4079379 (1978-03-01), Piesinger
patent: 4099137 (1978-07-01), Alm, Jr. et al.
patent: 4117661 (1978-10-01), Bryant, Jr.
patent: 4398195 (1983-08-01), Dano
patent: 4417248 (1983-11-01), Mathews
patent: 4589100 (1986-05-01), Savit
patent: 4642647 (1987-02-01), Sturza et al.
Ross Erno H.
Skupen William L.
Buczinski Stephen C.
Hughes Aircraft Company
Karambelas A. W.
Wallace Linda J.
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