Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 5508570 | Differential amplifier based integrator having a left-half plane pole A fast parasitic-insensitive continuous-time filter and equalizer integrated circuit uses an active integrator. The integrator has a left-half plane pole. A feedback path is provided that includes a resistive impedance which comprises a MOS transistor ope... | 04/16/1996 |
| 5503721 | Method for photoactivation A method for activating photoreactive compounds by supporting sample vessels containing a photoreactive compound at a selected temperature and irradiating the sample vessels while holding the sample vessels at a fixed relationship with the irradiating sou... | 04/02/1996 |
| 5466672 | Therapeutic use of clostridium difficile toxin A Methods for treating cancer are described, including methods for treating colon and pancreatic cancer. Bacterial toxins and portions of bacterial toxins are employed as both diagnostic and therapeutic agents.... | 11/14/1995 |
| 5464755 | Microbiological medium and method of assay The present invention is directed to methods and media for the isolation and presumptive identification of various bacteria. In particular, the organisms commonly associated with urinary tract infections are distinguished based on their colonial morpholog... | 11/07/1995 |
| 5461742 | Mist treatment of garments An apparatus and method for applying textile treatment finishing agents to garments or garment work pieces is provided. The apparatus includes a rotating drum and a nozzle for generating a fine mist or fog of textile treatment agents inside the rotating d... | 10/31/1995 |
| 5458265 | Automated garment finishing system An integrated automated manufacturing system for finishing individual garments is provided. The system includes a conveyor system, a fixture constructed for movement on the conveyor in a predetermined orientation, a form mounted on the fixture for holding... | 10/17/1995 |
| 5456654 | Implantable magnetic hearing aid transducer An electromagnetic transducer for improving hearing in a hearing impaired person comprises a magnet assembly and a coil secured inside a housing which is fixed to an ossicle or a middle ear. The coil is more rigidly secured to the housing than the magnet.... | 10/10/1995 |
| 5455721 | Method and apparatus for automatic sector pulse generation and split field calculation in disk drives A method and apparatus for automatic sector pulse generation and split field calculation in disk drives without the use of tables improves the seek latency of a disk drive system because it does not have to wait for the INDEX mark or the beginning of a fr... | 10/03/1995 |
| 5447038 | Apparatus for simultaneously providing multiple temperatures using an automatically configurable cooling system having both cascade and single compressor modes A broad range cooling system is provided which can operate over a temperature range of -25° F. to 75° F. under any expected ambient temperatures. The system includes two compressor systems which are configurable to operate independently and as a cascade... | 09/05/1995 |
| 5443976 | Immobilization of Crotalus atrox and Crotalus durissus terrificus whole venoms on aldehyde-activated agarose Antivenoms to snake, spider, scorpion and jelly fish venoms are produced for the treatment of humans and animals, and for analytical use. The antivenom is purified with an antigen matrix containing a single whole venom or a plurality of whole venoms coval... | 08/22/1995 |
| 5442457 | Multi-line pooling facsimile apparatus A multi-line facsimile communication system, where two or more telephone lines are used simultaneously to transmit messages in order to increase the aggregate channel capacity and thereby increase transmission speed and reduce the transmission time. The s... | 08/15/1995 |
| 5428564 | Six transistor dynamic content addressable memory circuit A content addressable memory cell includes six transistors connected together to perform memory read, memory write, and matching operations. This cell has the ability to perform typical memory write and memory read operations as well as the capability of ... | 06/27/1995 |
| 5428411 | Protective eyewear device and lens therefor Protective eyewear for sports activities and the like having a resilient rigid frame is disclosed. Included is a sealing area around the eyes having a web which diverges outwardly in every direction toward the lens frame. The frame is curvedly contoured a... | 06/27/1995 |
| 5427488 | Quick acting nut or coupling assembly A threaded fastener has a casing enclosing at least three radially inwardly biased arcuate segments positioned to engage the threads of a bolt or hollow threaded member. The casing defines spaced apart internal frustoconical surfaces positioned to engage ... | 06/27/1995 |
| 5425244 | Double circuited evaporator cooling system automatically configurable to operate in cascade or single compressor mode A broad range cooling system is provided which can operate over a temperature range of -25° F. to 75° F. under any expected ambient temperatures. The system includes two compressor systems which are configurable to operate independently, or as a cascade... | 06/20/1995 |
| 5424610 | Compact fluorescent outboard ballast An outboard ballast which allows a compact fluorescent light bulb and its associated ballast to be positioned within a standard table lamp having a standard-size harp. The ballast is divided into separate sections so that the sections and their housing ca... | 06/13/1995 |
| 5418502 | Micro power R-C relaxation oscillator An R-C relaxation oscillator having two comparators and a silicon controlled rectifier dissipates very low average power without resulting in frequency instabilities due to circuit propagation delays. A timing capacitor CT is charged through a ... | 05/23/1995 |
| 5418473 | Single event upset immune logic family A complete logic family which is SEU immune is constructed, using logic/circuit design techniques, to recover from an SEU, regardless of the shape of the upsetting event. The logic family provides a redundancy of data to be used to restore data lost by an... | 05/23/1995 |
| 5417076 | Cooling system automatically configurable to operate in cascade or single compressor mode A broad range cooling system is provided which can operate to cool a product load to a predetermined temperature in the range of -25° F. to +75° F. over an ambient temperature range of -60° F. to 150° F. The system includes two compressor systems whic... | 05/23/1995 |
| 5408523 | Electronic remote data recorder with facsimile output for utility AC power systems A stand-alone electronic measuring instrument for measuring AC (alternate current) power parameters on a utility distribution system wherein the measurement results are communicated telephonically to a facsimile device. Well-known techniques are used to a... | 04/18/1995 |
| 5406513 | Mechanism for preventing radiation induced latch-up in CMOS integrated circuits A CMOS circuit formed in a semiconductor substrate having improved immunity to radiation induced latch-up and improved immunity to a single event upset. The circuit architecture of the present invention can be utilized with N-Well, P-Well and dual Well pr... | 04/11/1995 |
| 5399284 | Process for removing starch-containing contamination from dishes and surfactant concentrates suitable for this process A process for removing especially starch-containing impurities from crockery in dishwashers makes it possible effectively to remove the impurities if a concentrated aqueous tenside solution is used which contains 0.08 to 2.0 % wt, N-C8 to C | 03/21/1995 |
| 5396502 | Single-stack implementation of a Reed-Solomon encoder/decoder The present invention is for a Error Correction Unit (ECU) that uses a single stack architecture for the generation, reduction and evaluation of the polynomials involved in the correction of a Reed-Solomon code. The circuit uses the same hardware to gener... | 03/07/1995 |
| 5394766 | Robotic human torso A robotic assembly is provided that simulates the size, appearance and movement of a human torso. The torso includes a unique combination of high speed rotary and linear actuators arranged in a geometry that enables anatomically correct human-like movemen... | 03/07/1995 |
| 5392735 | Marine mammal communication device An innovative communication device and learning tool that enables marine mammals, such as dolphins, to communicate with humans and with each other. The communication device includes a keyboard having a plurality of hollow keys. Each key includes a switch ... | 02/28/1995 |
| 5391177 | Ophthalmic lance An ophthalmic lance includes a retractable blade and a sheath, the retractable blade can only be exposed when a button is pressed down. The blade is attached to a spring loaded stem so that when the button is released, the blade is automatically retracted... | 02/21/1995 |
| 5388083 | Flash memory mass storage architecture A semiconductor mass storage system and architecture can be substituted for a rotating hard disk. The system and architecture avoid an erase cycle each time information stored in the mass storage is changed. (The erase cycle is understood to include, full... | 02/07/1995 |
| 5384652 | Infrared communication repeater architecture A diffuse infrared communication link provides for communication directly between nodes each having a transceiver. A repeater may be present to facilitate communication. Each node is automatically reconfigurable between operation with or without a repeate... | 01/24/1995 |
| 5381330 | Half-bridge arrangement for switching electrical power A half-bridge arrangement for switching electrical powers, wherein at least two semiconductor switches (14, 21; 15, 20; 16, 19; 17, 18) forming a half-bridge (12a; 12b; 12c; 12d) are connected in series; each semiconductor switch (14, 21; 15, 20; 16, 19; ... | 01/10/1995 |
| 5376419 | Method and apparatus for seaming carpets A novel carpet seaming tape and method for use in glue down carpet installations is provided. A carpet seaming tape having a paper carrier with a hot melt adhesive on its top surface and a pressure sensitive adhesive on its bottom surface is aligned benea... | 12/27/1994 |
| 5374551 | Methods for detection, identification and speciation of members of the genus Listeria The present invention relates generally to differential carbon source metabolism in the genus Listeria, metabolic, biochemical, immunological and genetic procedures to measure said differential carbon source metabolism and the use of these products to det... | 12/20/1994 |
| 5370165 | Attachment for a portable router A router dust hood has a sub base which attaches to the base plate of a router. A dust hood slides over the motor and is coupled to the sub base. The handles of the router are taken off and mounted on to the hood. A top rubber casing slides over the motor... | 12/06/1994 |
| 5369857 | Method of making a telephone headset A telephone headset uses extruded thermoplastic with a pair of embedded steel wires to make the headband and microphone boom. The extrusion is formed by feeding the two wires through the extruding die along with the hot plastic. The two wires serve to sti... | 12/06/1994 |
| 5355406 | Integrated application controlled call processing and messaging system An integrated application controlled call processing and messaging system for use with a telephone system. The preferred embodiment comprises a PBX or central office system (Centrex) coupled to a voice messaging system to which an applications processor i... | 10/11/1994 |
| 5353682 | Closing and opening means for casting machine A slidably attachable, automated means for opening and closing the die halves of a casting machine. Cylinders are provided having integral vertical side grooves for mounting on said casting machines and the like. The preferred hydraulic cylinder has a hol... | 10/11/1994 |
| 5351343 | Ear flap hat The present invention is an ear flap hat that is designed to be worn in both good and bad weather. The hat gives the wearer the flexibility of wearing the hat with the ear flaps down covering the wearer's ears or positioning the ear flaps in an up positio... | 10/04/1994 |
| 5347464 | High-pass filter for enhancing the resolution of AC power line harmonic measurements An instrument employs a high-pass filter and an associated amplifier to reduce the number of Analog-to-Digital-Converter bits required to determine the amplitude of harmonics contained in digitally sampled AC (alternating current) power system voltage or ... | 09/13/1994 |
| 5344217 | Ergonomic foot rest A foot platform is provided which can be adjusted horizontally towards and away from an operator, up or down relative to the operator, and angularly between vertical and horizontal to provide a comfortable platform for the operator to rest a foot during o... | 09/06/1994 |
| 5340923 | Methods for making and purifying antivenoms Antivenoms suitable for treatment of humans and animals as well as for analytical use. A method wherein individual venoms are used to immunize and the resulting antivenoms are, thereafter, purified individually prior to mixing. Immunization is performed i... | 08/23/1994 |
| 5339077 | Comma code generator The preferred embodiment includes a method and apparatus for generating a comma code. A data word having a value m is received. A binary storage apparatus receives the data value. A storage apparatus is coupled to the output of the address calculator. The... | 08/16/1994 |
