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| Number | Title | Issue Date |
| 8001168 | Random pulse generation source, and semiconductor device, method and program for generating random number and/or probability using the source The present invention provides a semiconductor device such as an IC capable of generating completely random signals and generating an authentication signal, random number, and probability by integrally setting a random pulse generation source for spontaneously gener... | 08/16/2011 |
| 7930333 | High-speed, true random-number generator The present invention produces strings of true random numbers, extracted from field emission of electrons from nano-size emitters (NSE). Electrons may be produced in a miniature, three-electrode vacuum element that consists of a NSE emitter attached to the cathode s... | 04/19/2011 |
| 7885990 | Random telegraph signal noise as a source for random numbers An apparatus and method for providing a source of random numbers are generally described. In one example, an apparatus includes one or more storage elements having a selected voltage and a trip point, the voltage being close enough to the trip point such that random... | 02/08/2011 |
| 7849121 | Optical-based, self-authenticating quantum random number generators Various embodiments of the present invention are directed to methods and systems for generating random numbers. In one embodiment, a quantum random number generator comprises: a state generator configured to generate a quantum system in a coherent state; a polarizat... | 12/07/2010 |
| 7844649 | Optical-based, self-authenticating quantum random number generators Various embodiments of the present invention are directed optical-based quantum random number generators. In one embodiment, a quantum random number generator includes an input state generator that generates a first optical quantum system and a second optical quantu... | 11/30/2010 |
| 7752247 | Random number generator and generation method An RNG circuit is connected to the parallel port of a computer. The circuit includes a flat source of white noise and a CMOS amplifier circuit compensated in the high frequency range. A low-frequency cut-off is selected to maintain high band-width yet eliminate the ... | 07/06/2010 |
| 7519641 | Method and apparatus for generating true random numbers by way of a quantum optics process A method and apparatus for generating true random numbers by way of a quantum optics process uses a light source to produce a beam which illuminates a detector array. The detectors of the array are associated with random numbers values. Detection of a photon by one ... | 04/14/2009 |
| 7502815 | True random number generator and method of generating true random numbers A true random number generator may comprise a multi-gigabit transceiver with a transceiver to receive a signal of predetermined source data. Recovery circuitry of the transceiver may be operable to recover data from the received signal. A controller may stress the r... | 03/10/2009 |
| 7496617 | Tamper proof generation of true random numbers A method and a device generate a truly random number. The novel method obtains the true random number on the basis of a stochastically distributed duration of an electric charge exchange or charge reversal process. The processes for charge exchange in memory cells, ... | 02/24/2009 |
| 7461111 | Method of uniforming physical random number and physical number generation device A method of uniforming physical random numbers while concurrently maintaining a random number generating rate and ensuring security. The method sequentially inputs a plurality of physical random numbers to a shift register to hold them there, and shifts them every t... | 12/02/2008 |
| 7447721 | Method and apparatus for generating true random numbers by way of a quantum optics process A method and apparatus for generating true random numbers by way of a quantum optics process uses a light source to produce a beam which illuminates a detector array. The detectors of the array are associated with random numbers values. Detection of a photon by one ... | 11/04/2008 |
| 7428562 | Self-authenticating quantum random number generator A quantum random number generator uses measurements of a quantum state to generate a random value and to authenticate that the quantum state had the required properties for generation of a random series having the desired statistics. One exemplary embodiment generat... | 09/23/2008 |
| 7424500 | Random number generator with ring oscillation circuit A random number generator includes a ring oscillator having an EX-OR gate and four inverters together forming a loop. This loop enters stable state for a start signal having the low level and oscillates for the start signal having the high level. When the start sign... | 09/09/2008 |
| 7389316 | Method and apparatus for true random number generation Method and apparatus for true random number generation is described. One aspect of the invention relates to a digital logic circuit that includes N logic gates, where N is an integer greater than two. For each logic gate in the N logic gates: a first input terminal ... | 06/17/2008 |
| 7379955 | Device for and method of generating pseudo-random sequence uniformly distributed over any range A device for and method of generating an uncorrelated pseudo-random bit sequence by first selecting a user-definable value K. Next, factoring K+1 into m prime factors q1, q2, . . . , qm, where q1, q2, . . . , q | 05/27/2008 |
| 7356552 | VLSI implementation of a random number generator using a plurality of simple flip-flops A random number generator includes a plurality of groups of independent flip flops, each of the groups having different configurations. Each of the outputs of the plurality of groups of flip flops being connected in an exclusive-or (XOR) arrangement, with a latch co... | 04/08/2008 |
| 7356551 | Method and apparatus of retaining maximum speed of flip-flop metastability based random number generators An apparatus, system and method for retaining the maximum speed of flip-flop metastability based random number generators includes a fixed delay unit having an input for receiving a common signal from a digital signal generator, and a variable delay unit having an i... | 04/08/2008 |
| 7324647 | Quantum cryptographic key distribution networks with untrusted switches Methods and systems are disclosed in which information is securely transmitted in a network comprising untrusted network devices. Setup messages are sent to a networking device, and based on the setup messages, light directing devices are configured to direct light ... | 01/29/2008 |
| 7310604 | Statistical sound event modeling system and methods Complex sound events are created by generating multiple different kinds of simpler sounds with randomly varying repetition rates. The average repetition rate can also be variable. The values of sound parameters such as wave selection, pitch distribution, pan distrib... | 12/18/2007 |
| 7302457 | Method and apparatus for providing random bits Method and apparatus for providing random bits are described. In one embodiment, random bits are provided by storing a succession of random bits in a buffer. A quantity of bits is selected from the buffer at a source location and used as a basis of a new quantity of... | 11/27/2007 |
| 7293053 | Digital random generator based on an arithmetic compressor The proposed device enables the construction of a perfect random generator by combining any physical source, concerning which no assumptions of quality are made, with an extractor. The extractor is constituted by an arithmetic encoder and an output linear function e... | 11/06/2007 |
| 7254042 | Electro magnetic interference shielding device and a liquid crystal display device adopting same An Electro Magnetic Interference (EMI) shielding device (20) includes a body (201), at least a first engaging portion (203) extending from the body, and a pair of second engaging portions (205) formed on the body. A liquid crystal display... | 08/07/2007 |
| 7253717 | Method and system for communicating with and tracking RFID transponders An RFID system and method for communicating between a host computer, one or more interrogators connected to the host computer, and a large body of transponders distributed within an area covered by the interrogators. Each transponder originally has a common identifi... | 08/07/2007 |
| 7251734 | Secure integrated circuit including parts having a confidential nature and method for operating the same The secure integrated circuit (1) further includes storage means (2) in which confidential data is stored, such as an encryption programme and at least an encryption key, and a microprocessor unit (3) for executing the encryption programme. Said... | 07/31/2007 |
| 7249181 | Generating unique identifiers in a computer system Generating unique identifiers (UUIDs) for software objects and other components in a network in which a large number of components may exist simultaneously and/or over a period of time. UUIDs generated by a particular product are divided into two sub-fields. One sub... | 07/24/2007 |
| 7242776 | Method and apparatus for the generation and distribution of random bits A system (100) and method for the production and distribution of random bits is disclosed. The system uses a truly random source (102) to generate random data. The random data is sent to an input interface (104), which converts the random data t... | 07/10/2007 |
| 7243117 | Random number generator and probability generator A random number generator includes a flip-flop in which an output state (0 or 1) becomes definite according to a phase difference between signals inputted to two input units, a delay unit for producing the phase difference in these two input signals, and a feedback ... | 07/10/2007 |
| 7224305 | Analog-to-digital modulation A supplied analog signal is modulated by comparing the supplied analog signal with a noise signal. As a result of each comparison, an output signal is generated having a first value if the supplied analog signal is greater than the noise signal and generating an out... | 05/29/2007 |
| 7197523 | Efficient use of detectors for random number generation Apparatus for and methods of random number generation are disclosed, wherein a detector receives a group of n light pulses having single-photon intensity levels. Each of the n light pulses has a probability of less than one to produce a successful detection event at... | 03/27/2007 |
| 7193481 | Apparatus for providing a jittered clock signal and apparatus for providing a random bit An apparatus for providing a jittered clock signal has a reverse-biased diode. The reversed-biased diode has a leakage current which decreases a reverse voltage on the diode, time-dependent on a shot-noise of the leakage current. The apparatus for providing a jitter... | 03/20/2007 |
| 7188131 | Random number generator A generator of random numbers by a flip-flop having a data input receiving a first signal at a first frequency comprised in a predetermined range and the instantaneous value of which is conditioned by a disturbing signal, and having a clock input receiving a second ... | 03/06/2007 |
| 7175812 | Automatic sampler and needle for the same The surface of a needle for collecting samples is coated with a coating material lower in chemical activity than a base metal of the needle. More specifically, the surface of the needle may be coated with a layer of gold or platinum. Alternatively, the surface of th... | 02/13/2007 |
| 7167882 | True random number generation True random numbers are generated from position error signals or like signals. The generator is not dependent on a potentially biased reference or threshold, and is capable of quickly generating true random numbers on demand. The present invention can be implemented... | 01/23/2007 |
| 7145933 | Method and apparatus for generating random signals A random binary signal is generated using a plurality of noise sources, each of which defines events occurring at random intervals, the outputs of the sources being combined in such a way that the events are interspersed in the resultant signal. ... | 12/05/2006 |
| 7142675 | Sequence generator and method of generating a pseudo random sequence A sequence generator for generating a pseudo random sequence for random number generation or a stream cipher engine includes a plurality of linear feedback shift registers operable to generate a plurality of binary sequences. A plurality of nonlinear functions havin... | 11/28/2006 |
| 7139397 | Hybrid architecture for realizing a random numbers generator A hybrid architecture for realizing a random numbers generator comprising a digital circuitry portion able to provide for a random bytes sequence as well as an analog circuitry portion able to provide a seed of the true random type is described. ... | 11/21/2006 |
| 7136889 | Method and apparatus for generating high quality real random numbers using a disk drive A method and apparatus for generating high quality real random numbers is provided. In particular, the present invention enables a hard disk drive of a computer to function as a generator of high quality real random numbers by monitoring one or more of a disk drive'... | 11/14/2006 |
| 7124157 | Random number generator A random number generator having a simple construction which generates physical random numbers necessary for encryption. The random number generator has an amplifier to amplify noise signals generated from a noise source and digitizer to digitize the amplified noise... | 10/17/2006 |
| 7117233 | Random number generator and method for generating a random number A random number generator includes a noise signal generating device for supplying a noise signal, a sampling device connected between an output of the noise signal generating device and an output of the random number generator and sampling the noise signal in a samp... | 10/03/2006 |
| 7111029 | Random number generating circuit A random number generating circuit can generate random numbers with high randomness, and can be made as a compact integrated circuit. The random number generating circuit includes an uncertain logic circuit having a flip-flop type logic circuit that gives digital ou... | 09/19/2006 |
