49 results about "Ternary numeral system" patented technology

The systems and methods of this invention watermark an original data file using dimensional compression and expansion. The original data file extends along a given dimension and has portions that extend along that given dimension. The information is embedded into the data file by selectively dimensionally compressing or expanding a size of each of some or all of the portions along the given dimension, which can be space or time. The portions of the data file are selectively dimensionally expanded or compressed according to a given encoding scheme. This encoding scheme can use the kind of modification, the relationships between the type of modification between adjacent portions, or the duration or degree of compression or expansion to store a portion of the embedded information. The portions of the embedded information can be individual bits of binary or trinary information, or can be a portion of analog information.

Invention resides in a switching amplifier having a quaternary input control signal that provides quaternary levels (1, 0H, -1, and 0L) which is coupled to an H-bridge amplifier to provide error cancellation in switching amplifier output signal. The quaternary control signal alternates from a zero state at a high level ("0H") to a zero state at a low level ("0L") between each non-zero state (+1 or -1). In a preferred embodiment, a three-level sigma-delta modulator is provided for greater operational efficiency for ease of detecting zero states and minimizing power. The three-level sigma-delta modulator receives and coverts an amplifier input signal into a ternary output signal that is then coupled to a ternary-to-quaternary converter to generate the quaternary control signal to provide as input to the H-bridge.

The invention relates to two types of wired communication methods and systems for occasions with different requirements. The two systems both comprise two parts of physical conversion modules, one part is used for converting binary data flow into ternary data flow for transmitting, and the other part is used for reducing the received ternary data flow into the binary data flow. The two systems carry out the conversion between the binary data flow and the ternary data flow by adopting two conversion formats of 11b7t and 19b12t respectively, respectively save 36.4% and 36.8% of transmission time under equivalent clock rate, and meet the requirements of the occasions with different application requirements on hardware scale. The conversion operations can be carried out through the steps with binary code, 21BCT (Binary Coded Ternary) code, and ternary code. In the conversion step, the conversion link of binary code and the 21BCT code can be implemented through the mode of storage address mapping, , therefore, the method ensures that the hardware circuit is simplified.

In an ultra-wideband communication system, a 1-trit ternary analog-to-digital converter (“ADC”) having dynamic threshold adaption and providing an output in ternary form [+1, 0, −1]. The ternary ADC includes a pair of 1-bit binary ADCs, one being configured in a non-inverting form, and one being configured in an inverting form. Each binary ADC includes an feedback network mechanism, thereby allowing for simultaneous and independent adaptation of the pair of thresholds, compensating for the effects of any DC offset that may be present. The use of a trit-based ternary encoding scheme improves system entropy.

New techniques for generating entries in a content addressable memory (CAM) capable of comparison operations such as "greater than" and "less than" decisions are described. The techniques can be used with binary or ternary CAMs. The number of CAM entries needed to implement such decisions is drastically reduced for both binary and ternary CAMs. In the case of binary CAMs, one or multiple searches are needed to perform the comparisons, while in the case of ternary CAMs a tradeoff between the number of CAM entries and the number of searches can be found. As an example, a method of classifying data networking packets is implemented using the new techniques. A packet classifier based on subfields of a packet header is also described.

Methods and systems for transmission and reception of ternary phase-shift keyed data that include mapping triplets of binary bits to pairs of ternary symbols, such that three bits of data are encoded across two symbols having three-point constellations; modulating the pairs of ternary symbols onto a carrier; and transmitting the modulated carrier across a transmission medium.

The invention relates to a power consumption optimizing method for an RM (Reed-Muller) logical circuit comprising irrelevant items. The method comprises steps as follows: 1, polarity conversion from irrelevant-item-containing Boolean logic to RM logic is realized; 2, initial population is generated randomly; 3, conversion of decimal polarity to a binary system or a ternary system is completed; 4, different digits among different polarities in a polar set of the population are calculated; 5, the best polarity conversion sequence in each generation of to-be-evaluated polar set is calculated with an improved self-adaption genetic algorithm; 6, polarity conversion is performed on the current polar set according to the sequence obtained in the step 5; 7, the fitness value of each polarity is calculated according to an RM expression and a fitness function of the corresponding polarity, and an elitism preservation strategy is executed; 8, if current evolutionary algebra is smaller than the largest iteration times, steps 9 and 10 are executed, and otherwise, the best polarity is output; 9, selection, intercrossing and mutation operation are executed; 10, operations from the step 4 to the step 7 are circularly executed. The polarity searching efficiency is improved, and the convergence and the robustness of the genetic algorithm are enhanced.

The invention discloses an ultra wideband stratum communication system which is mainly used for solving the problem that no reliable communication means can be taken when a serious accident occurs in a mine well. The ultra wideband stratum communication system comprises two transceivers, a pair of transmitting and receiving common electrodes and a transmitting and receiving changeover switch, a wireless channel is formed through the electrodes by using a stratum as a transmission medium so as to further form a time division duplex communication system. Each transceiver comprises transmitting equipment and receiving equipment, wherein the transmitting equipment comprise a channel coding unit, an M-element spectrum spreading unit and an E-class power amplifier; the receiving equipment comprise a low noise amplifier, a level-isolating straight-coupling capacitor, an AGC (Automatic Gain Control) amplifier, an A/D (Analog to Digital) converter and a dispreading, demodulating and channel decoding unit. A ternary pseudo random code with chip value of -1 or 0 or 1 is taken as an M-element spectrum spreading code, and a push-pull power amplifier with an output transformer is used as the E-class power amplifier. The invention has the advantages of small signal duty ratio, high peak-to-average power ratio, good error code characteristics and long transmission distance, and can provide a reliable communication means for mine well disaster relief.

The invention discloses a ternary system electric storage material and preparation and application of the ternary system electric storage material. The chemical structure general formula of the ternary system electric storage material is , wherein x ranges from 5 to 9, y ranges from 1 to 5, the number-average molecular weight ranges from 11000 to 13000, the molecular weight distribution ranges from 1.4 to 1.6, and R is -Br or -H or -NO2 or -N(CH2CH3)2. The ternary system electric storage material has the high performance of having the ultrahigh electrical information storage intensity, and the information storage capacity of the material is greatly improved. Meanwhile, a ternary system storage device can be obtained based on the ternary system electric storage material, the preparation method is simple and high in efficiency, the obtained ternary system data storage device is high in stability, the data memory space in a unit intensity increases exponentially in comparison with the data memory space based on '0' and '1' binary data storage, and therefore the ternary system electric storage material has great value in ultrahigh density data storage application of the next generation.

The invention discloses a pseudohalogen induction-based two-dimensional perovskite (CH<3>NH<3>)<2>PbI<2>(SCN)<2> electric storage device and a preparation method therefor. The preparation method comprises the following steps of dissolving methyl amine iodide into a DMF solvent, and then adding lead thiocyanate into the solution, fully oscillating and preparing into a yellow perovskite solution; coating a substrate with the perovskite solution to prepare an active layer; and next, preparing an electrode on the active layer to obtain the pseudohalogen induction-based two-dimensional perovskite (CH<3>NH<3>)<2>PbI<2>(SCN)<2> electric storage device. The pseudohalogen induction-based two-dimensional perovskite material is formed by organic amine salt and the inorganic metallic compound through a coordination effect so as to prepare the organic electric storage device with the sandwich structure, so that an organic electric storage behavior is realized successfully; meanwhile, the preparation method is simple and the ternary electric storage behavior is high in yield; and therefore, the invention also discloses an application of the two-dimensional perovskite material in the preparation of the electric storage device.

A ternary non-clobber character wheel dial sensor includes a mechanical counter frame, a mechanical character wheel arranged on a shaft in the frame, flexile printed circuits inserted in the character wheel and a connecting bottom plate. The sensor is characterized in that the radial plane of the character wheel is zoned and coded according a ternary coding method. The left flexible printed circuit of the character wheel is equipped with three light emitting diodes for lighting. The relative position of the right flexible printed circuit is equipped with three receiving triodes for reading. The flexible printed circuit is electrically connected with a microprocessor through the connecting bottom plate bus. The beneficial effects of the invention are that binary code discs are substituted by ternary code discs. No clobber is on any position of a code disc. Compared with a present five bits binary code disc, the quantity of the photodiodes and photo triodes is reduced by two fifths. And the aims of simple structure, convenience, practicality and lowered cost are achieved. The invention can be applied various metering instruments using mechanical counter and absolute code angle displacement sensors.

Based on automaton of demarcating borderline and vertex chain encoding method, image recording, image unit searching, ternary notation coding and image restoration are encoded through vertex chain. Implementing step are: selecting three vertexes 1, 2, 3 on square dot matrix of image, recording corresponding vertexes along a direction so as to obtain record of image unit in method of vertex chain encoding; generating vertex chain coding of image unit by using automaton of demarcating borderline automatically; registering coordinate of starting point of chain coding in ternary notation. Outstanding strongpoint is high compress performance of exceeding all image storage formats in current.

The invention discloses a ternary electric memory material of azo chromophore based on imide framework, as well as preparation and application of the ternary electric memory material. The azo chromophore adopts the following structural formula: in the formula, Ar is shown in the specification, and R adopts N,N-bisCl-C6 alkylphenyl, N,N-diphenyl aminophenyl or para hydroxybenzene. The synthesis technology of the azo chromophore is simple, the para hydroxybenzene is made into a ternary data memory with a sandwich structure of bottom electrode/organic film/upper electrode, the manufacture technology is mature, the performance of the memory is stable, the data memory capacity in unit density is exponentially increased compared with binary data memory based on 0 and 1, and the material has huge value in the super-high density data memory application in the future.

As aforementioned n ternary voltage regulating circuits are arranged, as (1-n), wherein the turns ratio between the secondary and the first of the first transformer (B) is K, while the second is 31K, the third is 32K, as like, the n-th is 3n-1K, and the switch (Q1-Q4) only closes one group of (Q1, Q3), (Q1, Q2), or (Q3, Q4), (Q2, Q4). Therefore, a voltage regulator with n bits of ternary digit alternative-current stabilizer is provided. Assuming the values of m-th digit signal is Sm-1, the regulating input voltage is Vout, therefore, the output voltage Vs of the regulator is Vs=VoutK(10S0+31S1+32S2+...+3n-1Sn-1)(Sm-1=-1, 0, +1).

The invention provides an impact monitoring-orientated digital asynchronous compressive sampling system and method. According to the system and method of the invention, as for the time-domain sparseness and crest obviousness of impact monitoring signals, compressive sampling can be effectively performed on the impact monitoring signals. The system comprises three main parts, namely a time-domain ternary (-1,0,1) encoder module, an arithmetic logic module and a signal recovery module. According to the system and method of the present invention, change quantities in the impact monitoring signalscan be effectively captured; the impact monitoring signals are first subjected to ternary coding; and ternary coded information is subjected to compressive sampling, so that a small number of sampling points are obtained to recover original signals, and therefore, the storage pressure of data transmission can be decreased. Compared with a traditional analog compressive sampling method, the methodof the present invention is realized by digital circuits, so that the influence of noise interference and nonlinear factors in circuit systems can be decreased, and reconstruction accuracy can be improved. According to the method of the present invention, a time-division work scheme is adopted, so that the power consumption of the system can be effectively reduced.

The invention relates to a cipher mechanical solidifying and checking method used for safety assurance of a high-consequence system, including the steps: 1, constructing a cipher mechanism virtual machine; 2, starting up and running the virtual machine to reduplicatively execute mechanical solidification; 3, regulating and recording ternary numerical values of registers installed on the register rings at all layers; 4, according to the ternary numerical values, completing the mechanical solidification of the cipher in layers; where the cipher is a group of A and B combinations, representing the movements of gear sets A and B, respectively. It can conveniently implement multilayer and multitooth-bit mechanical solidification of an arbitrary cipher, implement the functions of correct-code turn-on and code-error instantly locking for an arbitrary cipher, and be used in safety assurance of a high-consequence system.