MULTICHANNEL TIME-INTERVAL METER Russian patent published in 2012 - IPC G04F10/04 

FIELD: physics.

SUBSTANCE: multichannel time interval meter has information reception flip flops, a time counter whose inverting input and reset input are connected to a time pulse bus and a reference pulse bus, respectively, and the outputs are connected to a first group of data inputs of a first storage device, whose address inputs are connected to outputs of a first counter, a second counter whose input is connected to a clock pulse bus, and the outputs are connected to address inputs of a first commutator switch, whose data inputs are connected to outputs of corresponding information reception flip flops, whose first inputs are connected to corresponding input buses, a flip flop whose input is connected to the reference pulse bus. According to the invention, the device further includes a second storage device, information analysis units and a second commutator switch whose data inputs are connected to the first outputs of corresponding information analysis units, whose second outputs are connected to clock inputs of corresponding information reception flip flops; the first inputs of the information analysis units are connected to corresponding input buses, the second inputs are connected to the clock pulse bus, the third inputs are connected to outputs of corresponding information reception flip flops, and the fourth inputs are connected to the reference pulse bus, the reset input of the first counter and the clock input of a register, whose data inputs are connected to address inputs of the first and second storage devices, whose first groups of data inputs are combined, and second groups are combined and connected to outputs of the second counter, the output of the first commutator switch and address inputs of the second commutator switch, whose output is connected to the inverting input of the first counter and resolution inputs of the first and second storage devices, whose write inputs are connected to the clock pulse bus and control inputs to the direct and inverting outputs of the flip flop, respectively, wherein the first and second storage devices are in form of dual-port RAM, the flip flop is in form of a T flip flop, and each information reception flip flop is in form of a D flip flop whose first input is the data input.

EFFECT: possibility of measuring duration of input pulses, suppressing noise at inputs of the meter, and possibility of random transmission of information to a microcomputer during measurement which increases measurement time without increasing expenses on circuits.

2 dwg