Masaki Momodomi, Fujio Masuoka, Riichiro Shirota, Yasuo Itoh, Kazunori Ohuchi, Ryouhei Kirisawa: Electrically erasable programmable read-only memory with NAND cell structure. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt, September 25, 1990: US04959812 (379 worldwide citation)

An erasable programmable read-only memory with NAND cell structure is disclosed which has memory cells provided on a N type substrate. The memory cells are divided into NAND cell blocks each of which has a series array of memory cell transistors. Each of the transistors has a floating gate, a contro ...

Stephen R Duggan: Adaptable, digital computer controlled cardiac pacemaker. Medtronic, Neuman Williams Anderson & Olson, September 25, 1990: US04958632 (366 worldwide citation)

A multi-mode, adaptable, implantable pacemaker is described including a microprocessor and memory programmed or capable of being programmed with a variety of processes for stimulating the patient's heart and/or for sensing and transmitting to a device external of the patient's body, various conditio ...

David J Duffield, Billy W Beyers Jr: Tuner control apparatus having tune-by-label capability. RCA Licensing Corporation, Joseph S Tripoli, Peter M Emanuel, Thomas F Lenihan, September 25, 1990: US04959720 (330 worldwide citation)

A tuning system is provided which allows a user to enter text labels associated with respective channels or television programs to be tuned so that, thereafter, a channel or program to be tuned may be selected by the user by entering its label. Scheduling of television programs by label is also prov ...

Paul V Darbee, Richard E Ellis, Louis S Jansky, Avram S Grossman: Universal remote control device. Universal Electronics, Thomas R Vigil, September 25, 1990: US04959810 (272 worldwide citation)

The universal remote control system comprises data processor, input device including a keyboard and a keyboard circuit connected to the data processor, signal output device including circuitry for generating infrared light codes connected to the data processor means, a memory including a battery bac ...

Lynda M Sanders, Abraham Domb: Delayed/sustained release of macromolecules. Syntex, David A Lowin, John A Dhuey, September 25, 1990: US04959217 (253 worldwide citation)

This invention concerns novel, delayed/sustained release devices and compositions, including methods of their manufacture and use. The compositions include macromolecules, particularly polypeptide pharmaceuticals, and an initially partially-hydrated, non-biodegradable, hydrogel rate-limiting membran ...

James S Bates, Thomas P Clement, Darrell W White: Biopsy needle instrument. Boston Scientific Corporation, Fish & Richardson, September 25, 1990: US04958625 (247 worldwide citation)

A biopsy needle instrument has selectable locking means to permit or prevent the projection of a cannula and a stylet and separate loading members allowing the cannula and stylet to be loaded separately and yet fired sequentially using a single button. Another embodiment of the invention permits the ...

Theodore E Cadell, Kevin Rabalais: Multi-channel digital medical telemetry system. CME Telemetrix, Daryl W Schnurr, September 25, 1990: US04958645 (247 worldwide citation)

A medical radio telemetry system has a plurality of telemeters with one telemeter being located on each patient. Each telemeter is connected to the patient to collect data such as temperature, heart rate, pacer rate, respiration rate, brain activity level and blood pressure level. Each telemeter has ...

David F Mark, Leo S Lin, Shi da Yu Lu, Alice M Wang: Cysteine-depleted muteins of biologically active proteins. Cetus Corporation, Albert P Halluin, Jane R McLaughlin, Kate H Murashige, September 25, 1990: US04959314 (229 worldwide citation)

Muteins of biologically active proteins such as IFN-.beta. and IL-2 in which cysteine residues that are not essential to biological activity have been deleted or replaced with other amino acids to eliminate sites for intermolecular crosslinking or incorrect intramolecular disulfide bridge formation. ...

Brian L Sauer: Site-specific recombination of DNA in eukaryotic cells. E I Du Pont de Nemours and Company, William H Hamby, September 25, 1990: US04959317 (189 worldwide citation)

A method for producing site-specific recombination of DNA in eukaryotic cells at regions designated lox sites is disclosed.

Yoram Stettiner, Shabtai Adlersberg, Mendel Aizner: A method for indicating the presence of speech in an audio signal. The DSP Group, Townsend and Townsend, September 25, 1990: US04959865 (181 worldwide citation)

A voice operated switch employs digital signal processing techniques to examine audio signal frames having harmonic content to identify voiced phonemes and to determined whether the signal frame contains primarily speech or noise. The method and apparatus employ a multiple-stage, delayed-decision ad ...