DEVICE FOR INFORMATION SEARCH Russian patent published in 1998 - IPC

FIELD: electric communication. SUBSTANCE: given device is inserted with commutator, former of reset signals, register of search strategy ensuring feed of input signal to various networks of logic elements. Selection units perform preselection of input digital stream by type of command frames and decoders select input stream by type of answer. With passage of signals through particular networks of logic elements indication unit forms information messages on results of search. With such design of device there are achieved possibility of operation under real time mode, zero possibility of skip ( in case of availability of a priori authentic information on protocol ), simplicity of realization and modification for any commutation protocol of dialog type. Probability of false alarms depends on success of establishment of communication session in monitored channel and is proportional to probability of transmission of complete set of corrected frames during communication session by stations subject to correct identification of form and type of frames. EFFECT: increased validity of detection and identification of information. 2 cl, 23 dwg