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System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 5272766 | OCR system for recognizing user-specified custom fonts in addition to standard fonts using three-layer templates An optical character recognition system is disclosed which is capable of recognizing out-of-specification characters and custom fonts, in addition to standard fonts such as E13B, OCRA, OCRB and Farington 7B type fonts recorded on documents such as bank dr... | 12/21/1993 |
| 5262708 | System and method for reducing oscillation of a stepper motor A system and method are disclosed for reducing oscillation of a stepper motor. In one embodiment, the system includes an oscillation indicator circuit that is connectable to a stepper motor unit having a stepper motor and a stepper controller with a manua... | 11/16/1993 |
| 5178070 | Apparatus and method for controlling print timing operations An apparatus and method are disclosed for determining the position and angular velocity of a print drum. The apparatus includes a detector that is positioned proximate to the drum, and a processor coupled to the detector. The drum has a cylindrical body w... | 01/12/1993 |
| 5091968 | Optical character recognition system and method A system and method are disclosed for optical scanning and recognition of alphanumeric characters of different sizes and fonts such as E13B, OCRA, OCRB, and Farington 7B type fonts recorded on documents such as bank drafts and checks. The system comprises... | 02/25/1992 |
| 4868785 | Block diagram editor system and method for controlling electronic instruments A block diagram editor system and method is implemented in a computer workstation that includes a Cathode Ray Tube (CRT) and a mouse, graphics and windowing software, and an external communications interface for test instruments. The computer is programme... | 09/19/1989 |
| 4864469 | Support structure An integrated support structure provides for improved mounting of components such as circuit boards, disk drives, power supplies, and the like. The structure includes an upper frame and a lower frame hinged together and having cooperative elements for cap... | 09/05/1989 |
| 4862353 | Modular input device system A computer terminal work station having multiple peripheral units simultaneously interconnected into the terminal. A micro processor controller is provided in the terminal and a micro processor slave is provided in each of the peripheral units. Each unit ... | 08/29/1989 |
| 4862155 | Graphic display system with secondary pixel image storage An improved graphics display system includes a picture processor for processing display lists defining graphic designs, the display lists comprising pixel data and/or instructions for generating pixel data. The system further includes a display controller... | 08/29/1989 |
| 4858142 | Digitizer effective resolution measurement system using sinewave parameter estimation A method and apparatus for determining the effective bits of resolution of a digitizer wherein amplitude, frequency, phase angle and offset parameters characterizing a sinewave input signal to the digitizer are estimated from the waveform data sequence pr... | 08/15/1989 |
| 4856184 | Method of fabricating a circuit board A circuit board is fabricated from a substrate of dielectric material having at least one run of conductive material adhered to one surface thereof. A second substrate of dielectric material is bonded to the one surface of the first substrate so as to cov... | 08/15/1989 |
| 4855670 | Method of providing information useful in identifying defects in electronic circuits An electronic circuit is tested by applying a sequence of test vectors to the input port of the circuit as a plurality of sub-sequences each including at least one test vector. Serial scan vectors provided at a serial scan port of the circuit are examined... | 08/08/1989 |
| 4853843 | System for merging virtual partitions of a distributed database An object-oriented, distributed data base system separates into a plurality of virtual partitions following communication failure between sites accessing the data base. Each partition accesses a separate copy of an initial data base and independently upda... | 08/01/1989 |
| 4849924 | Event counting prescaler An apparatus for counting occurrences of a plurality of events characterized by unique event numbers includes a random access memory for storing event count numbers at addresses corresponding to the event numbers. The memory is addressed by an event numbe... | 07/18/1989 |
| 4843573 | Display-based color system A method and apparatus for reversibly transforming color, which is selected from a gamut of colors producible by the primaries of a color display device (20), into a perceptually uniform color space. The coordinates of the color space are readily converti... | 06/27/1989 |
| 4835736 | Data acquisition system for capturing and storing clustered test data occurring before and after an event of interest A memory pointer circuit includes a plurality of counters and a programmable logic array for controlling the counters to generate addresses for an acquisition memory. The programmable logic array directs a lower counter to generate a repeating sequence of... | 05/30/1989 |
| 4835488 | Wideband linearized emitter feedback amplifier The present invention constitutes a differential amplifier system (50) including a main differential amplifier (60) and a compensating differential amplifier (90) which are coupled together in a complementary manner to provide a composite output signal. T... | 05/30/1989 |
| 4833649 | Multiple port random access memory A multiple port memory includes a set of memory units each comprising a set of memory cells, one corresponding to each port. Each cell of a memory unit stores a single data bit and each cell is independently read and write accessed through separate data, ... | 05/23/1989 |
| 4833350 | Bipolar-CMOS digital interface circuit A bipolar-CMOS (Bi-CMOS) digital interface circuit (50) of the present invention provides an interface between a bipolar digital circuit (52) and a CMOS digital circuit (54). The digital interface circuit includes a digital transform circuit (56) that rec... | 05/23/1989 |
| 4833695 | Apparatus for skew compensating signals A clock signal is transmitted to nodes of each of several interconnected circuits through a separate adjustable delay circuit, the time delay of each delay circuit being adjusted so that the clock signal arrives at each node at the same time, thereby sync... | 05/23/1989 |
| 4827250 | Graphics display system having data transform circuit A graphics display system (10) includes a display screen (14) on which images are formed and a data transform circuit (12) that provides transformations between model data representing the basic shape of an object and display data that are employed in the... | 05/02/1989 |
| 4825404 | Interface system which generates configuration control signal and duplex control signal for automatically determining the configuration of removable modules An interface circuit in a modular electronic system includes duplex control-signal transmission lines. Modules connectable to a controller unit of the system transmit configuration data items by way of the duplex lines to the controller during a first tim... | 04/25/1989 |
| 4825339 | Sheet metal knock-out A knock-out in the wall of the housing for electronic equipment is selectively removed to provide a knock-out opening. A wall includes first and second slits positioned along the boundary of the knock-out and separated by a land. The wall includes a break... | 04/25/1989 |
| 4825379 | Method and apparatus for processing waveform records for jitter elimination prior to averaging in determining signal to noise ratio Stored waveform records representative of respective repetitions of a repetitive signal are processed by reading a first waveform record from memory to form a reference signal. A second waveform record is read from memory to form a second signal, and the ... | 04/25/1989 |
| 4823301 | Method and circuit for computing reciprocals A circuit produces an output binary floating point number approximating with high accuracy the inverse of an input binary floating point number D in accordance with the expression (1/D).apprxeq.[(1/A)-C]+[C-(B/A2)], where the number A is a low ... | 04/18/1989 |
| 4823189 | Method and apparatus for creating a dither pattern A record in which a color is represented on a record medium at a selected gray scale level is created by resolving an addressable area of the record medium into a square array of addressable record locations and organizing the record locations into a plur... | 04/18/1989 |
| 4821220 | System for animating program operation and displaying time-based relationships In a computerized simulation system, the behavior of a model comprising a group of interrelated objects in an object oriented programming environment is defined by a constraint network including temporal constraints, which the future behavior of the model... | 04/11/1989 |
| 4816994 | Rule acquisition for expert systems A rule acquisition method for expert systems receives input from the expert, one word at a time, and checks each word by determining alternative parses for the partial sentence as so far entered. Feedback is provided to the expert when a word does not con... | 03/28/1989 |
| 4813009 | Method and apparatus for determining internal status of a processor An improved method and apparatus is disclosed for determining the internal state of a processor without disturbing the operational environment of the processor. A two phase process is employed. In the first phase, external signals produced by the processo... | 03/14/1989 |
| 4812769 | Programmable sampling time base circuit A time base circuit for a waveform sampling system produces a strobe signal for initiating waveform sampling an adjustable strobe delay time following detection of a triggering event in a waveform. The time base circuit includes a strobe control circuit f... | 03/14/1989 |
| 4812996 | Signal viewing instrumentation control system A signal viewing instrumentation control system includes a programmable test instrument, a computer having an input keyboard and/or mouse, a CRT display and a communications interface for the computer to communicate with the test instrument. The test inst... | 03/14/1989 |
| 4808112 | High density connector design using anisotropically pressure-sensitive electroconductive composite sheets A high density connector in which the conductive leads of at least two circuit boards, two flexible circuits, or one of each are interconnected directly without the use of a traditional molded connector with pins captured therein. This is accomplished by ... | 02/28/1989 |
| 4801813 | Event distribution and combination system An apparatus for generating a trigger signal in response to a selected pattern of events includes event synchronizers for generating synchronized event signals of states indicating the current state of each event on the falling edge of each pulse of a clo... | 01/31/1989 |
| 4800443 | Method and apparatus for carrying out a dithering operation A two-dimensional array of binary values is used to control operation of a bi-level imaging device. The array of binary values is formed by applying an enhanced array g(u,v) to a two-dimensional array of threshold values. A two-dimensional array of pixel ... | 01/24/1989 |
| 4797586 | Controllable delay circuit A delay circuit generates an output signal that changes state in adjustably delayed response to a state change in an input signal, the delay being adjusted by a control signal. A series of buffers produces a plurality of delayed signals that change state ... | 01/10/1989 |
| 4795923 | Adjustable delay circuit A delay element for producing an output signal in response to a change in state of an input signal includes variable gain first and second amplifiers and a delay buffer having a fixed delay. The input signal is applied as input to the first amplifier and ... | 01/03/1989 |
| 4794275 | Multiple phase clock generator A multiple phase clock generator includes a ring of an even number of phase cells, each phase cell generating a separate phased clock signal. Each phase cell supplies its phased clock signal and a prebias output signal in response to concurrent assertion ... | 12/27/1988 |
| 4791595 | Digital vector generation with velocity correction by tabulation of counter control signals Method and apparatus for drawing vectors on limited precision display devices in amounts of time approximately proportional to the vector's geometric length. Vectors are drawn by a series of strokes. Each stroke is a series of counter control signals, eac... | 12/13/1988 |
| 4791404 | Predictive time base control circuit for a waveform system A predictive time base control circuit for a waveform sampling system of the type which converts a sequence of analog waveform samples into a sequence of digital quantities for storage in an addressable acquisition memory. The time base circuit generates ... | 12/13/1988 |
| 4791600 | Digital pipelined heterodyne circuit A digital pipelined heterodyne circuit includes sine and cosine function generators for generating m-bit digital coefficients and an m-stage digital multiplier for multiplying the coefficients by a digitized data input signal. A triangular shift register ... | 12/13/1988 |
| 4789952 | Method and apparatus for digital compensation and digital equalization A method and apparatus are disclosed which provide for the removal of distortion present in a digital output signal from a linear analog signal processing system. Two applications are disclosed: digital compensation and digital equalization. Digital compe... | 12/06/1988 |
