The present invention relates to a multitask circuit comprising resonant element for supplying address and data information for address and value registering inputs of digital and analogue devices from a signal source. The multitask circuit has a resonator block comprising at least one resonant element, a rectifier block, a capacitor block, an amplifier, signal comparator blocks, a signal summing block, a signal sample storage block, an integrator triggered on edge or level, and a comparator.
In operation of electronic devices which need computer technology it is essential that the task should be processed and executed in a logical order. While for the customary digital processing of tasks an alternative exists (neural network), the electronic signal transmission is based on digital transfer of information which is based on the distinction of levels of a logical ‘1’ and a logical ‘0’.
Since digital transfer of information uses low energy levels, signal levels may be distorted due to external environmental effects, involving loss of information. Accordingly, safe transfer of signals is much more expensive than the technique used for producing the signal. Generally, errors derive from signal receiving circuits which store incorrect values and accordingly, the conclusions drawn from them will also be erroneous. Techniques used for error correction are also expensive. The present invention described in the preamble breaks with the digital conventions as it considers frequency as the basis of signal transmission and uses resonant elements for recognition of signals which is novel in comparison of the prior art. Typically, resonators are used for generating oscillation and not for recognition or decoding of addresses.
A first object of the present invention is to produce an improved communications circuit which is immune against noise and in which reception and decoding of an instruction and at the same time creation of the connection is performed by means of a single physical element, e.g. quartz crystal. Several parallel connected physical elements of this kind may be used simultaneously or a given point of these elements can be considered as a common point.
A second object of the present invention is to make transfer of several independent information possible—if required—in a given instruction time e.g. analogue value.
A third object of the present invention beside the frequency-based communication is to make transfer of information possible wherein the code and/or the system of numbers of the information is optional.
A fourth object of the present invention is to provide a low-cost circuit.
The invention is based on the realization of several details associated with each other. These are the following:
Firstly, it has been realized that if frequency is associated with information or instruction then a resonator placed in the information path operates as a switch. Due to the resonance, resistance between the input and the output decreases by orders. Consequently, current flows through the resonator which current generates controlling AND/OR switch signals on the outputs of the resonator connected to the digital or analogue inputs.
Secondly, it has been realized that the energy storing feature of the resonator can be utilized when the shape of the signal of excitation/input signal is changed and the shapes of the output signal and the input signal of the resonator placed in the information path are compared. The result of the comparison is IDENTICAL/DIFFERENT, that is, it represents a binary value of a logical ‘1’ or a logical ‘0’. If a numerical system is assigned to the shape of the signal then communication may be accomplished according to innumerable numerical systems due to the infinite number of signal shapes.
Thirdly, it has been realized that when coupling is based on the “insensible” feature of the shape of the input signal of the resonators then the width of the signal of the transmitter (PWM) can be modified at the receiver's side on an instruction issued at the transmitter's side. At the receiver's side a measurable analogue value can be assigned to the width of the signal, in this way the value (which can be DC as well) measured at the time of the instruction/marking can be evaluated at the transmitter within the cycle time of issuing the instruction.
Fourthly, it has been realized that the circuit according to the invention makes detection of cycles with zero voltage possible these cycles are missing from the input signal shape, which is the simplest way of digital signal communication.
The invention is a combination according to the opening paragraph in which an input of the multitask circuit comprises at least one resonant element connected to a signal source is coupled to an input of a resonator block comprising at least one resonant element. An output of the resonator block is connected to a first output of the multitask circuit either directly or through a rectifier block comprising at least one diode and/or a series connected amplifier. A capacitor block comprising at least one capacitor is connected to a common point of the series connection. The first output of the multitask circuit is connected to an analogue or digital input of a storage cell comprising at least one digital and/or analogue storage element. The outputs of the multitask circuit is not part of any oscillator or feedback circuit.
The essence of the present invention lies in that a frequency-based communication can be performed by means of resonators and supplemental elements connected to them while a high-level noise control is provided.
The resonant elements may be of a so called tuning-fork type elements, and also the so called QCAN resonant elements may be used for this purpose.
A detailed description of the coupling arrangement according to the invention will now be given with reference to the accompanying drawing.
In
On the one hand input BE of the multitask circuit R according to an embodiment of the invention is connected to signal source S, on the other hand it is connected to input I1 of resonator block 1 comprising at least one resonant element. Output O1 of the resonator block 1 comprising at least one resonant element and first output KI1 of the multitask circuit R are connected directly or through a rectifier block 2 comprising at least one diode, or through a series connected amplifier E. A capacitor block 3 comprising at least one capacitor is connected to a common point of the series connection. The first output KI1 of the multitask circuit R is connected to one input TIN of analogue or digital storage cell T comprising at least one digital and/or analogue storage element, excluding that any of the outputs of the multitask circuit R is a part of oscillator or feedback circuit.
At least one supplemental element is placed between input I1 and output O1 of resonator block 1 comprising at least one resonant element. It can be a first signal comparator block 4 whose first input I14 is connected to the input I1 of resonator block 1, its second input I24 is connected to output O1 of the resonator block 1 and its output O4 is connected to second output KI2 of the multitask circuit R, or it can be a signal summing block 5 whose first input I15 is connected to the input I1 of the resonator block 1, its second input I25 is connected to output O1 of resonator block 1, and its output O5 is connected to second input I26 of a second signal comparator block 6. At least one signal sample storage block J is connected to a first input I16, and output O6 is connected to third output KI3 of the multitask circuit R. Further, this supplemental element can be a comparator 8 and an integrator 7 triggered either on edge or level performing common functions. The phase reverser input of comparator 8 is connected to output O7 of the integrator 7. The phase non-reverser input of comparator 8 is connected to analogue input A_BE of the multitask circuit R. Further, input I7 of the integrator 7 may be connected either to input I1 or to output O1 of the resonator block 1, as indicated by dotted line in
An exemplary embodiment of the invention will be further described hereinafter.
The resonator block 1 representing the central element in
From the foregoing it can be seen clearly that the solution according to the present invention contains a number of qualitative elements which compensate the relative slowness of signal transmission. The solution according to the invention eliminates the disadvantages of the conventional digital edge and signal level technique.
Number | Date | Country | Kind |
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P0402132 | Oct 2004 | HU | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/HU05/00117 | 10/20/2005 | WO | 4/19/2007 |