DIGITAL RANGE FINDER Russian patent published in 1998 - IPC

FIELD: radio engineering. SUBSTANCE: device has serial circuit of sampler and recognition unit, recognition counter, reading unit, distance counter, match register, pulse generator, which first output is connected to control inputs of sampler and recognition unit; its second output is connected to control input of reading unit and counting input of distance counter. Outputs of distance counter are connected to first inputs of match register. Output of reading unit is connected to second inputs of match register. Goal of invention is achieved by introduced unit for detection of recognition end, delay gate, OR gate, and serial circuit of code inverter and adder. Output of recognition unit is connected to first input of OR gate. Output of unit for detection of recognition end is connected to input of delay gate, second input of OR gate and input of reading unit. Output of delay gate is connected to reset input of detection counter. Output of OR gate is connected to counting input of detection counter, which outputs are connected to corresponding inputs of code inverter. Outputs of match register are connected to second inputs of adder. Input of unit for detection of recognition end is connected to output of recognition unit. EFFECT: increased precision.