Signal sensing arrangement
阅读：714发布：2021-12-17
专利汇可以提供Signal sensing arrangement专利检索，专利查询，专利分析的服务。并且A signal sensing arrangement in a code translator for distinguishing signals at first points from noise caused by these signals at other points by gating the signals in gating circuits via a strobe pulse generator. Each of the first points is coupled to a separate gate via a shaping circuit designed to improve the signal-to-noise ratio. The strobe pulses are coupled to the other inputs to the gate circuits. The arrangement is capable of distinguishing between signal and noise even if the peak amplitudes of both occur substantially at the same time and/or the signal amplitude experiences rapid fall-off after peaking.，下面是Signal sensing arrangement专利的具体信息内容。
1. In a code transmitter, an improved signal sensing arrangement comprising: a. a plurality of code wires; b. a matrix of controlled magnetic cores through which said plurality of code wires are threaded as secondary windings; c. each code wire constitutes the series connected primary windings of a plurality of transformers, the transformers each including a magnetic core with the secondary winding of each being wound on the associated magnetic core; d. a plurality of signal sensing devices, of which each said secondary winding forms a part, each said sensing device including a gating circuit having a pair of collectorintercoupled transistors, and a parallel RC circuit branched in parallel with said secondary winding associated therewith and coupled to the base of one of said pair of transistors, wherein the interconnected collectors constitute the output of each signal sensing device; and e. a strobe pulse generator the output of which is coupled to the base of the other of said pair of transistors.
2. In a code translator having decoder and coder arrangements, an improved signal sensing arrangement capable of distinguishing, at a plurality of first points representative of a plurality of connections between said decoder and coder, information signals from the noise at said first points which is caused to be generated by said information signals in said code translator at second points, wherein the improvement comprises: a. a strobe pulse generator for providing strobe pulses in predetermined time relation to the presence of information signals; b. signal shaping means, coupled to said first points, for improving the signal-to-noise ratio at said first points, including an individual signal shaping circuit associated in one-to-one correspondence with each of said first points; and c. gating circuit means including a plurality of gating circuits, each coupled by way of a first input to said source of strobe pulses and individually coupled by way of a second input to one of said shaping circuits, for providing, in conjunction with said strobe generator and said shaping circuit means, a capability of discriminating between information signals and noise at said first points even if the peak amplitudes of both signals and noise occur substantially at the same time and/or the signal amplitude experiences decay after peaking, each of said plurality of gating circuits having its output coupled to an output of the sensing arrangement.
3. The signal sensing arrangement according to claim 24 wherein said first and second inputs of each said gating circuit are isolated from one another.
4. The signal sensing arrangement according to claim 3 wherein said signal shaping network is arranged to provide an underdamped oscillating waveform from said information signal.
5. The signal sensing arrangement according to claim 4 wherein said strobe pulse generator provides a strobe output pulse substantially entirely during the second half period of said underdamped oscillating waveform and substantially starting from the peak value of this half period.
6. The signal sensing arrangement according to claim 2 wherein each of said gating circuits includes a pair of transistors, the bases of which constitute said first and second inputs and the collectors of which are joined and are coupled to said output of the gating circuit.
7. The signal sensing arrangement according to claim 6 wherein said signal shaping network is constituted by a parallel circuit having three branches which in turn are constituted by a resistance, a capacitance and an inductance respectively.
8. The signal sensing arrangement according to claim 7 wherein said parallel circuit is branched between said base of one of said pair of transistors comprising a gating circuit and a first DC source (ground).
9. The signal sensing arrangement according to claim 8 wherein the emitter of said one transistor is coupled to said first DC source via a second capacitance and to a second DC source via a second resistance.
10. The signal sensing arrangement according to claim 8 wherein the joined collectors of said pair of transistors are connected to a third DC source via a third resistance and to said first DC source via a third capacitor.
11. The signal sensing arrangement according to claim 6 wherein both of said pair of transistors are normally conductive and connect said joined collectors to a potential substantially equal to that of said first DC source.
12. The signal sensing arrangement according to claim 10 wherein said joined collectors are connected to the base of a third transistor, the collector of which is connected to a tapping point of said third resistance and the emitter of which constitutes the output of said gating circuit.
13. The signal sensing arrangement according to claim 7 wherein each of said first signal points is represented by the secondary winding of a transformer, this secondary winding being coupled to the signal shaping network associated to this point.
14. The signal sensing arrangement according to claim 13 wherein said inductance is constituted by said secondary winding of said transformer.
15. The signal sensing arrangement according to claim 14 wherein said transformer has a single secondary winding and a plurality of primary windings each branched in series with a diode rectifier.
16. The signal sensing arrangement according to claim 15 wherein said signal sensing arrangement includes a plurality of said transformers, the primary windings of which are arranged in a plurality of sets, with the primary windings of each set being connected in series with one said diode rectifier so as to form a code wire.
17. The signal sensing arrangement according to claim 16 wherein said transformers are arranged in a two-coordinate matrix of rows and columns, the outputs of said gating circuits associated to the transformers of each column being coupled to the input of a common bistate device, and wherein the output of said strobe pulse generator is connected to the one input of each of a plurality of second gating circuits, each associated to a respective one of said rows, the other inputs of said second gating circuits being controlled by a row selector, the outputs of these second gating circuits being each connected to a respective one of said other inputs of the first gating circuits of the row to which the second gating circuit is associated.
18. The signal sensing arrangement according tO claim 17 wherein said two-coordinate matrix of transformers constitutes the coder circuit of the code translator the decoder circuit of which is constituted by a plurality of second transformers, each with one primary winding and a plurality of secondary windings, the primary windings of said second transformers being each coupled to an individual control circuit and the secondary windings of said second transformers being arranged in a plurality of sets, wherein the secondary windings of each such set are connected in series and form part of a distinct one of said code wires the diode rectifier of which is arranged between said decoder and coder circuits, all code wires being coupled via a third transformer to a common bias pulse source which normally blocks all diode rectifiers, and wherein said decoder circuit includes means for simultaneously operating the control circuits coupled to the primary windings of said second and third transformers, the secondary windings of which form part of a same code wire in such a manner that only in this code wire the diode rectifier is deblocked.
19. The signal sensing arrangement according to claim 18 wherein said second transformers are arranged in a second two-coordinate matrix of rows and columns.
20. The signal sensing arrangement according to claim 19, wherein said code translator forms part of a letter sorter apparatus, and wherein each of said rows of said coder circuit corresponds to a sorting program capable of being selected by said row selector.
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