|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||342/013; 342/014; 342/020; 342/089; 342/175; 342/195|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 10 인용 특허 : 21|
A pulse descriptor word (PDW) collector, including an extractor coupled to a computer, for passively collecting radio frequency (RF) data received by an electronic surveillance system (ESS). It is integrated into the ESS after a receiver (which converts RF pulse data to digitized PDWs) and parrallel to a presorter. Using two RAM circuits, the extractor forms a read/write loop to ensure that no PDWs are lost in the collection process. The extractor simultaneously writes onto one RAM while reading from the other RAM to the computer. The read/write function...
1. In an electronic surveillance system having a receiver for receiving radio frequency pulse signals and for converting said radio frequency pulse signals into digitized radio frequency pulse descriptor word data and a presorter connected down-circuit of said receiver for further processing of digitized radio frequency pulse descriptor word data forwarded from the receiver, a pulse descriptor word (PDW) collector, comprising:a memory storage and a PDW extractor circuit for collecting all digitized radio frequency pulse descriptor word data received by s...