SU1233295A1 - Device for reception of absolute bipulsed signal - Google Patents

Abstract

The invention relates to electrofi 5i and can be used in butt chains for intrastational or interblock exchange of digital information. The purpose of the invention is to simplify the device. When the device is turned on, the incoming pulse sets the D-flip-flop 1 to the corresponding stable state. The EXCLUSIVE OR 2 element receives an input pulse and a pulse from output 2) trigger 1. The one-shot 3 is triggered by positive signal level drops from the EXCLUSIVE IPI 2 element. The signal from its output goes to the clock input 3) trigger 1. At the output of the D-trigger 1, at the moment of action of the positive drops of this signal, the value of the parcel arriving at its information input C 2 Il is recorded. 1C (Л С со 9 Э Фиь.Т

Description

The invention relates to telecommunications and can be used at butt-ends in intra-office or inter-unit digital information exchange.

The purpose of the invention is to simplify; devices.

FIG. 1 is a schematic diagram of an apparatus for receiving an absolute bi-pulse signal; in fig. 2 - diagrams explaining the principle of operation of the proposed device.

A device for receiving an absolute bi-pulse signal contains a D-flip-flop t, an EXCLUSIVE OR element and a one-shot 3.

The receiver for receiving an absolute bi-pulse signal works in the following way.

A signal acts at the input of the device (Diagram 2a), in which the unit sprinkling of the transmitted signal is represented by a high level signal in the first half of the clock interval and a low level signal in the second half. With zero transmission of the transmitted signal, the order of alternation of polarities within the clock interval is uniform. At the moment the device is turned on, output 2) -trigger 1 (diagram 2d) establishes one of two stable states, in this case a high level state. Positive level drops in the signal from the output of the EXCLUSIVE SHSh 2 element (diagram 26) start the one-shot 3 forming pulses (figure 2c) duration

 T - t, -t

t

3329531

where T is the duration of the clock interval of the transmitted signal; t and t are the operation delays of the element EXCLUSIVE OR 2 and

5 one-shot 3.

The signal from the output of the one-shot 3 is fed to the clock input of the D-flip-flop 1 and at the moments of action of the positive: differences in the levels of this signal

to, the values of the parcels acting on the information input of the D-flip-flop 1 are recorded. After the device is turned on, the correct reproduction of information begins after the first change of the value of the transmitted parcel (in this case, starting from the 5th clock interval). The clock sequence is removed from the output of the one-shot 3. In this case, the negative level drops are tightly connected to the boundaries of the clock intervals of the absolute bi-pulse signal acting at the input of the device.

Claims (1)

25 Formula invented and. A device for receiving an absolute biopulse signal containing an I-flip-flop and an element of the SPECIAL STRISTS, The 30 input of which is the input of the device, and the second input is connected to the output switch of the SMB trigger, characterized in that, in order to simplify the device, a single vibrator is entered into it, the input of which is connected to the output of the EXCLUSIVE OR element, and the output is connected to the clock input of P - the trigger and is the clock output of the device, while the informative marsioin input of the P-flip-flop is combined with the first input of the EXCLUSIVE W element (I, .and the output of the L-flip-flop is the information OUTPUT of the device. GSSH Order 2784/58 Random polygons pr-tie, Uzhgorod, st. Project, 4 Circulation 62 Subscription