Bizarre Patents
Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7349251 | Integrated memory circuit arrangement A memory circuit arrangement includes a switching element per column that can be used to connect or disconnect two bit lines for memory cells of a column. The switching element leads to a reduction of the chip area and/or to an improvement in the electronic properti... | 03/25/2008 |
| 7199410 | Pixel structure with improved charge transfer An active pixel is described comprising a semiconductor substrate and a radiation sensitive source of carriers in the substrate, such as for instance, a photodiode. A non-carrier storing, carrier collecting region in the substrate is provided for attracting carriers... | 04/03/2007 |
| 6954113 | Programmable oscillator circuit A programmable crystal oscillator is provided having a memory for storing frequency-defining parameters. Typically, one of these parameters is used to program an adjustable capacitive load circuit coupled to a crystal to thereby adjust the crystal source frequency. ... | 10/11/2005 |
| 6834093 | Frequency comparator circuit A frequency comparator circuit is configured to compare whether the frequency of two input signals are within a tolerance of each other. The frequency comparator circuit includes two counter circuits, an AND gate, and a frequency detector circuit that is configured ... | 12/21/2004 |
| 6470064 | Extended length counter chains in FPGA logic A synchronous counter, the inventive counter is synchronized to a clock, e.g., a master clock of an FPGA, and includes a first counter that increments in response to the master clock, a resynchronizer that receives counter bits from the first counter and,... | 10/22/2002 |
| 6072534 | Device for the subdivision of the period of a signal into N quasi-equal parts The period of an input signal is subdivided into N parts by carrying out a count, during this period, of the pulses delivered by a clock. This number is divided by N and then the remainder of this division is distributed among all the N parts of the perio... | 06/06/2000 |
| 5940467 | Counting circuit Quality requirements on a counter may set a limit to the highest frequency that can be applied to the counter. This will also limit the resolution. A counter is provided including a generator for generating, in response to a first clock frequency, M secon... | 08/17/1999 |
| 5920494 | Method and device for varying interpolation factors A method and device for varying interpolation factor of at least one position-dependent, periodic signal in a position measurement system. The method and device allows switching between one of a specified number of different interpolation factors at a swi... | 07/06/1999 |
| 5878101 | Swallow counter with modulus signal output control Improved PLL frequency synthesizer circuits, including a novel swallow counter, may be operated at high speeds without experiencing internal delays or malfunctions. The swallow counter supplies a modulus signal to a prescaler which is capable of selective... | 03/02/1999 |
| 5787135 | Variable frequency divider A phase locked loop includes a voltage controlled oscillator (VCO) for generating output VCO pulses. A frequency divider divides the VCO pulses by a variable number to produce frequency divided pulses whose phase is compared with that of input reference p... | 07/28/1998 |
| 5696462 | Serial clock synchronization circuit A low cost and easily implemented apparatus and method for synchronizing serially connected clock circuits is ideally suited to audio applications. The circuit takes data from a bitstream clock source and from the local source and counts the number of pul... | 12/09/1997 |
| 5528183 | Serial clock synchronization circuit A low cost and easily implemented apparatus and method for synchronizing serially connected clock circuits is ideally suited to audio applications. The circuit takes data from a bitstream clock source and from the local source and counts the number of pul... | 06/18/1996 |
| 5349622 | Programmable frequency divider circuit A programmable frequency divider circuit includes a prescaler which consists of p cascade-connected dividing cells, a cell of rank i in the cascade having a normal division factor 2 and also being programmable so as to divide by 3 the input frequency appl... | 09/20/1994 |
| 5335253 | Non-integral frequency division using regulated digital divider circuits The frequency divider of the present invention includes one or more regulated digital divider circuits, each of which is made up of a finite state machine such as a general purpose counter. The regulated digital divider circuits can be cascaded such that ... | 08/02/1994 |
| 5323426 | Elasticity buffer for data/clock synchronization An elasticity buffer for use in a data transmission system having a transmitter and a receiver and utilizing a data transfer protocol that periodically supplies an elasticity element that can be deleted or replicated by the elasticity buffer to maintain t... | 06/21/1994 |
| 5280438 | Memory circuit including an EEPROM provided with unique addressing means for storing at selected memory cells frequently incremented count data A counter is provided which updates a most-recent counter value to be stored in a non-volatile memory. The counter includes a counter circuit for receiving a series of count pulses defining a count operation and outputting a series of coded binary signals... | 01/18/1994 |
| 5272650 | Self correcting time base for inaccurate oscillators An apparatus and method for providing a microprocessor having an inaccurate oscillator with a desired time base. The cycles of the output signal of the oscillator are counted by a first counter until the counted number equals a predetermined correction co... | 12/21/1993 |
| 5267273 | Clock signal generator using fractional frequency division and control thereof A clock signal generator using fractional frequency division is provided comprising a division circuit that produces a clock signal starting from a timing rhythm signal. The frequencies of the two signals are in a division ratio which is the sum of a whol... | 11/30/1993 |
| 5262714 | Sinewave frequency measuring apparatus This invention relates to sinewave frequency measuring apparatus and method and more particularly such apparatus including a frequency estimator triggered by a zero crossing of a sinewave and means for producing sample signals at a constant rate; and a me... | 11/16/1993 |
| 5222110 | Electronic counter for counting periodic clock signal generated at preset clock frequency The electronic counter for counting a periodic clock signal generated at a preset clock frequency (fo) includes a clock circuit generating the periodic clock signal at the preset clock frequency (fo); an adjustable frequency divider ... | 06/22/1993 |
| 5170417 | Preset number of pulses generated within given time period even when time period changes A circuit arrangement generates a preset number of output pulses each time between two consecutive input pulses, the distance between the input pulses being subject to variation. The output pulses should be approximately evenly distributed, which even dis... | 12/08/1992 |
| 5111134 | Method and apparatus for determining the frequency of short oscillation bursts of electrical signals In a method and an apparatus for determining the frequency of short oscillation bursts of electrical signals firstly oscillation bursts in desired number are read into a storage means and read out again cyclically adjoined to each other so that an oscilla... | 05/05/1992 |
| 5095452 | Device for accurately displaying physical measure by adjusting the outputs from pulse counters A device for displaying a physical measure, including a reference pulse generator, a pulse counter, a memory for storing a measurement number, a second memory for storing values used for adjusting the count of pulses, a display for showing a physically me... | 03/10/1992 |
| 5048065 | Method and circuit for controlling the frequency of an electronic inverter A method for modifying the frequency of a clock signal includes the steps of producing a clock signal having voltage pulses which occur at a first frequency and producing a control signal having voltage pulses which occur at a lower frequency. The frequen... | 09/10/1991 |
| 4998265 | Method of driving a charge detection circuit A method of driving a charge detection circuit of floating diffusion amplifier type including, a second conductivity type diffusion region produced on a first conductivity type semiconductor substrate or layer, a voltage barrier gate electrode adjacent th... | 03/05/1991 |
| 4972333 | Time internal measuring apparatus and method for a revolution sensor A scale pulse signal is produced whenever a revolution sensor detects a unit revolution angle formed an angle between cogs of poles. A time interval between the scale pulse signal is affected by an error in the formed angle. The time interval between the ... | 11/20/1990 |
| 4972446 | Voltage controlled oscillator using dual modulus divider An analog/digital voltage controlled oscillator includes a voltage to pulse converter which responds to a control voltage to generate appropriate control pulses to change the mode of operation of a divider to thereby vary the output frequency of the oscil... | 11/20/1990 |
| 4951282 | Method and apparatus for measuring the quality of digital signals A PROM has inupts from error detecting and processing equipment of the signal reproducing channels of equipment reproducing digital signals from magnetic tape and can be controlled to process selectively the recognition of errors and of their respective n... | 08/21/1990 |
| 4809221 | Timing signal generator A unique timing system is provided which allows for a user to program timing events with variable periods and edges from a fixed frequency clock, and having resolution greater than that of the fixed reference frequency. Delay elements, which are inherentl... | 02/28/1989 |
| 4800334 | Method of analyzing the voltage induced in an exciter coil of a stepping motor A method of analyzing the voltage induced in an exciter coil of a stepping motor. After energization the exciter coil is loaded by a low impedance so that the induction voltage can produce a current. Subsequently, it is attempted to maintain the current t... | 01/24/1989 |
| 4780896 | High speed digital counter slip control circuit A counter slip control circuit is described for digital transmission systems wherein the counter uses a feedback circuit to define the permissible counter states. The slip control input modifies the feedback function so that certain counter states are eit... | 10/25/1988 |
| 4720800 | Device for measuring liquid flow volume with temperature compensating A device for measuring the volume of flowing liquid with temperature compensation includes a device for generating a volume signal, a device for detecting the temperature of the fluid to generate a temperature signal, and an electronic computer for receiv... | 01/19/1988 |
| 4686458 | Pulse alignment system A system for automatic alignment of two pulses is disclosed. The disclosed system is particularly adapted to align the cathode current pulse supplied to a TWT amplifier with the RF exciter pulse so as to improve the efficiency of the TWT amplifier. The sy... | 08/11/1987 |
| 4639789 | Raster scanner variable-frequency clock circuit A circuit for correcting for polygon drive motor velocity irregularities in a flying spot scanner is described. A crystal controlled oscillator is used to generate the system clock. As the motor speeds up, or slows down, pulses are subtracted, or added, t... | 01/27/1987 |
| 4628269 | Pulse detector for missing or extra pulses A missing pulse detector is disclosed in which the absence of a pulse in a variable frequency periodic pulse train is detected and distinguished from a reduction in the pulse repetition rate. Between successive pulse train pulses a first counter counts cl... | 12/09/1986 |
| 4618920 | Frequency control circuit A frequency control circuit for controlling the output frequency of an inverter power pole switching arrangement produces a modified clock signal by inhibiting clock pulses of a stable clock signal in response to output pulses of a voltage controlled osci... | 10/21/1986 |
| 4590432 | Constant-percent break pulse corrector Constant-percent break interval pulse correctors insure that the break interval of a dial pulse subsists for a substantially constant percentage of the total pulse interval; i.e., break interval plus make interval. The constant-percent break interval puls... | 05/20/1986 |
| 4573176 | Fractional frequency divider A fractional divider which functions as a prescaler in a phase lock loop-based frequency synthesizer provides a selectable prescaling factor to the divide-by-N programmable divider. The prescaling factor can assume either the value 2 or 2+1/N. The fractio... | 02/25/1986 |
| 4573175 | Variable digital frequency generator with value storage Characteristics of a pulse sequence, such as frequency, are controlled in a simple circuit without requirement for specific storage components. The cumulative effect of a sequence of control signals is maintained by providing a phase shift between a pair ... | 02/25/1986 |
| 4447883 | Coincidence-error correcting apparatus and method New and improved method and apparatus for the correction of coincident errors attendant the automated detection and counting of mixed particles having detectable characteristics of different levels in particle counting applications wherein the detection o... | 05/08/1984 |
