SU1626384A1 - Pulse-to-binary code converter - Google Patents

Abstract

The invention relates to a pulse technique and can be used in digital data transmission systems. The invention makes it possible to simplify the converter. The shaper units 1 and 2 pulses generate short pulses at the output when the specified pulse length of the Manchester code P arriving at information input 5 is exceeded. At the same time, at the output 8 of the EXCLUSIVE OR 4 element a clock pulse sequence is formed, and at the output 9 of the majority element 3 - an information pulse sequence in the skin without a return to nougat. silt

Description

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The invention relates to a pulse technique and can be used in digital data transmission systems.

The purpose of the invention is to simplify the dispatcher.

FIG. I presents the functional diagram of the converter; on flash 2 - temporary diagoams that show his work.

The converter contains (Fig. 1) the first, second pulse formers 1.2 pulses, the majority element 3, the element 4 IKK STREET OR, information input 5, power input 6, zero potential bus 7, clock and information outputs 3 and 9.

The Converter operates as follows.

The principle of operation of the NOBEN OS converter on the selection of the pulse width of the phase-shift keying (FM) sequence, the FM sequence is a code with a return to zero (Manchester P) with a mandatory level change in the middle of the clock interval, (fig.2a), displays of logical unit- transition from a level to 1: iZ; ohm, b for a half turn. Thus, the unity of the xsdgrue,;, and these symbols) logical zero 01 , insert logical zeroes of units of the representation, meanders with period T, denoted by ft J03UM to T / 2 Tn. — in the manner xxd of the logical zero to the logical unit / follow, -: phase shift. on G 2, and the transition of the logical unit to the logical null-phase of the s i and the series of ia T / 2 Analyzer 1 length 1 impulse (.ch logicala koi ODPNR q1 h of the loshego ul, it is possible f to predict the signal change in FM- offenses.

The majority element is 3 mi fuller; the function of the xpat information cell is of the form | .ch1 oiatoli 1,2 nalizirumg LXJAI О FM-pos 1e / g: ha1C) 1 nos 11 hpigel impulses .i1 zeros P l) gpchag, their units. Her / :, FM sequential, prev, tj / yaog is a meander with a theory, I baseline shift, 2 r.cpiu n, yo, they inputs Mporitarny ale; onga 3 they will bend the levels of respectively the logical unit and logical ey / i ( through time T / 2 capacitor: formprov, thu 1 2 ry and sub-fiche;: these are the vp JtH.ij and the ruminal principle two and three n of the output of the majority element, - hives roe ;, v., n, c (fig i

M tr)

When a phase shift occurs, for example, a logical unit by T / 2, which corresponds to a change in the code in the FM sequence from the logical

zero in a logical unit (figa, ty-ts), through time t determined by shaper 2, a logical unit appears at the second input of the majority element 3 (fig 2b, t3-t / i. t7-ts), which, folding by the majority principle with the logical unit at the first input of the majority element 3, causes by the voltage at the output of the majority element

3 and at its third input of a logical unit (FIG. 2d, ta-t4, tr-te) If logical units follow in the FM sequence, i.e. this sequence is with a period T (FIG. 2h, t / i te), then at the first and second inputs of the majority element 3, there are levels of the corresponding logical unit

4 logs of a certain nul, d at the output of the majority element 3 is supported by a logical unit (Fig. 26 in g,).

With the advent of phase shift logic

the zero zero, which corresponds to the change of the col p FM sequence from a logical unit to a logical zero, the time r is determined by the Shaper 1 at the input of the mid-stage sample 3 according to the volpets, gogich with its t ul (fig 26 tj-ti, tt) of the jflci stage; The majoritarian principle with a logical point on the second approach. The major element of element 2 causes

g ploir at the output of the majority iid 3 and at its Tpt-gate input the logical

HV (Fig 2, ta- tj, it-i) in a heavy way,

 | GRB code selects in the FM-by .1 slant the moments of transition (from

one i about the logical state to another

Setting up a custom code for the clock iirj. iHHMaeroro M –si and depends on the parameters of the capacitor and the capacitors, Jürg Irszatele1 1 and 2 The optimal setting is the best result.

time g (f g 26 c). psiHoe C.75T CM sequence Then it is more possible to unlock 1 GHz FM signal frequency, not

1 oIj pszhem distortion received in, see 1 and the 03Cf, the TOI of the input FM signal.

i / i. iKTOBcn output from M-sig.-tgZ occur, at the output of an EXEMPTIVE OR A

g: rj. e, 1, and 1, but modulo two input FM-s; t, optelonnost with a sequential mini-ir /, code taken from, output of the control element 0 (Fig. 2e.

The technical advantage of the proposed converter is its simplification as compared with the known one, as well as the automatic initial setting when the supply voltage is applied, when the second and third inputs of the majority element 3 have a zero level at the expense of the capacitors of the formers 1 and 2 logical zero is set. When a logical zero arrives at the input 5, the logical zero level is formed at the output of the majority element 3, and when the input unit arrives at the input unit, the level of the logical unit is established over time determined by the resistor and the Former 2 capacitor.

Claims (1)

Claims of the Invention Bi-pulse code to binary converter, containing the EXCLUSIVE OR element, the first and the input and output of which are respectively an information input and a clock output of the converter, characterized in that, in order to simplify the converter, pulse shapers, a zero potential bus and a major element are introduced into it, the information inputs of the first and second pulse shapers are combined and connected to the information input of the converter, The first power inputs of the first and second pulse formers are combined and are the power input of the converter, the second power inputs of the first and second pulse formers are combined and connected to the zero potential bus, the outputs of the first and second pulse shapers are connected respectively to the first and second inputs of the majority element, the output of which is connected to the second input of the EXCLUSIVE OR element, the third input of the majority element and is the information output of the converter. 2