US Fed News Service, Including US State News back issues from Wednesday, December 27:
Indian Inventors Develop Integrated Circuits Input Output Block
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Manoj Kumar Sharma of New Delhi, India, and Rajesh Kaushik of Hisar, India, have developed an input/output block (IOB) with programmable hysteresis. An abstract of the invention, released by the U.S. Patent & Trademark Office, said: "An IOB provides ...
U.S., Canadian Inventors Develop Information Organization Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Andy Curtis of Bunker Hill, W.Va., Gerasoulis Apostolos of Highland Park, N.J., and Alan Levin of Vancouver, Canada, have developed methods and systems for providing a response to a user's query based on other users' picks. According to the U.S. Patent & ...
South Korean Inventor Develops Slew Rate Control Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Chi-Won Kim of Suwon-si, South Korea, has developed a transmission line driver for controlling slew rate and methods thereof. According to the U.S. Patent & Trademark Office: "In the method of controlling a slew rate, a transmission line driver may set a ...
Connecticut Inventor Develops Intrinsic Birefringence Correction System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Harry Sewell of Ridgefield, Conn., has developed systems and methods for improved correction of intrinsic birefringence. According to the U.S. Patent & Trademark Office: "Two pairs of optical elements correct for intrinsic birefringence of optical ...
Japanese Inventors Develop Composite Structure Formation Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Tomokadsu Ito, Tatsuro Yokoyama, Katsuhiko Mori, Hironori Hatono, Masakatsu Kiyohara and Yuji Aso, all from Fukuoka, Japan, and Jun Akedo of Ibaraki, Japan, have developed a composite structure and a method and an apparatus for forming the same. An abstract of ...
Taiwanese Inventor Develops Print Media Sheet Positioning Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Tsung-Te Lin of Taipei, Taiwan, has developeda guiding and positioning apparatus for accurate guiding and input of a print media sheet to a business machine. According to the U.S. Patent & Trademark Office: "The guiding and positioning apparatus includes a ...
New Jersey Inventors Develop Optical Transmission Polarization Control Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Hongbin Zhang of Marlboro, N.J., Li Liu of Carneys Point, N.J., R. Brian Jander of Freehold, N.J., and Alexei N. Pilipetskii of Colts Neck, N.J., have developed methods and an apparatus of performing polarization control for optical transmissions. According ...
Japanese Inventors Develop Optical Film
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Katsumi Suzuki, Fumiko Kawasato and Ken Moriwaki, all from Ichihara, Japan, have developed an optical film. According to the U.S. Patent & Trademark Office, the invention relates to an "optical film which comprises a transparent resin layer made of a ...
Japanese Inventors Develop Polarization Splitting Element
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Kazuhiko Momoki of Saitama-ken, Japan, and Keiji Ohtaka of Kanagawa-ken, Japan, have developed a high performance polarization splitting element and an optical device using the polarization splitting element. According to the U.S. Patent & Trademark ...
California Inventors Develop Optical Fiber Based Surface Sensing System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Annette C. Grot of Cupertino, Calif., and Kai Cheung Chow of San Jose, Calif., have developed a surface sensing system that includes at least two sensors located on the end of the same optical fiber. According to the U.S. Patent & Trademark Office: "The ...
New Jersey Inventor Develops Ornamental Design for Victorian Scroll Bracket
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Ranobir Roychowdhury of Cherry Hill, N.J., has developed an ornamental design for a victorian scroll bracket, the U.S. Patent & Trademark Office announced. The inventor was issued U.S. Patent No. D533,767 on Dec. 19. The original application was ...
German Inventors Develop Digital Delay Line
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Juergen Hoetzel of Florstadt, Germany, Guenther Kirchhof-Falter of Seeheim-Jugenheim, Germany, and Hermann Meuth of Rossdorf, Germany, have developed digital delay lines, particularly for use for radar-based distance measurements and relative-speed measurements from a ...
Japanese Inventors Develop Porous Film Manufacture Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Shigeru Yano, Mindiaw Wang and Taroh Ichikawa, all from Aichi, Japan, have developed a porous film and a process for producing the same. According to the U.S. Patent & Trademark Office, the invention relates to a "porous film having excellent moisture ...
California Inventors Develop Optical Transmission Network
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- David F. Welch of Menlo Park, Calif., Ting-Kuang Chiang of Saratoga, Calif., Radhakrishnan L. Nagarajan of Cupertino, Calif., Vincent G. Dominic of Fremont, Calif., and Fred A. Kish Jr. of Palo Alto, Calif., have developed an optical transmission network with ...
Connecticut Inventor Develops Pressure Transducer
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Alan D. Kersey of Glastonbury, Conn., has developed a pressure transducer for sensing pressure using a differential pressure sensing technique. According to the U.S. Patent & Trademark Office: "A pressure transducer has a cane waveguide geometry with ...
German Inventor Develops Aperture Projection Objective
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Karl-Heinz Schuster of Koenigsbronn, Germany, has developed a very-high aperture projection objective. According to the U.S. Patent & Trademark Office: "A very-high aperture, purely refractive projection objective is designed as a two-belly system with an ...
Japanese Inventor Develops Sheet Materials Double Feed Detection Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Takehiko Kawasaki of Kanagawa, Japan, has developed a double feed detection method of recording media or documents, and a double feed detection apparatus. According to the U.S. Patent & Trademark Office: "A double feed detection method for detecting ...
Arizona Inventor Develops High Efficiency Electromagnetic Beam Projector
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Steven R. Sedlmayr of Gilbert, Ariz., has developed a high efficiency electromagnetic beam projector, and systems and methods for implementation thereof. According to the U.S. Patent & Trademark Office: "This invention relates to electromagnetic wave beam ...
Dutch Inventor Develops Optical Image Formation Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Antonius Johannes Maria Nellissen of Eindhoven, Netherlands, has developed a method of forming an optical image in a radiation sensitive layer. According to the U.S. Patent & Trademark Office: "An optical image is formed in a radiation-sensitive layer, by ...
Japanese Inventors Develop Optical Modulator
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Masaki Sugiyama and Masaharu Doi, both of Kawasaki, Japan, and Yumi Nakazawa and Tadao Nakazawa, both of Zama, Japan, have developed an optical modulator used in optical communication. According to the U.S. Patent & Trademark Office: "In relation to an ...
California, Illinois Inventors Develop Goal Based Learning System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Brian R. Beams of Agoure Hills, Calif., and Scott B. Harris of Elgin, Ill., have developed a system that provides a goal based learning system utilizing a rule based expert training system to provide a cognitive educational experience. According to the U.S ....
British Inventors Develop Latch Circuit
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- David Walter Flynn and David William Howard, both of Cambridge, Great Britain, have developed a latch circuit that includes a data retention latch. According to the U.S. Patent & Trademark Office: "A latch circuit is described including a function path ...
Japanese Inventor Develops Small Electronic Device Spring Mechanism
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Junichi Uchida of Tokyo has developed a spring mechanism and cell contact mechanism for small electronic device. According to the U.S. Patent & Trademark Office: "In a cell cover according to the present invention, a compressed coil spring formed by ...
British Inventors Develop Porous Beads Production Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Andrew Ian Cooper and Haifei Zhang, both of Liverpool, Great Britain, have developed porous beads and a method of production thereof. According to the U.S. Patent & Trademark Office: "The present invention relates to porous beads and to methods of ...
Massachusetts Inventor Develops Team-Member Contributions Analysis System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Philip James Campaigne of Harvard, Mass., has developed a method for a plurality of reporters to collectively report team-member activity that is causal to team achievement. According to the U.S. Patent & Trademark Office, the invention relates to a ...
Japanese Inventors Develop Color Image Processing Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Takahiro Yagishita of Kanagawa, Japan, and Satoshi Ouchi of Tokyo, have developed a color image processing apparatus and a color image processing method. According to the U.S. Patent & Trademark Office: "The color image processing apparatus comprises; a ...
Ohio Inventor Develops Synthetic Turf with Cooling Layer
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Christopher Tetrault of Amelia, Ohio, has developed a synthetic turf with super absorbent materials in order to keep the synthetic turf cooler than conventional synthetic turfs, the U.S. Patent & Trademark Office announced. The inventor was issued U.S ....
Japanese Inventors Develop Sheet Processing Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Masaharu Nemura, Junichi Moteki and Daisaku Kamiya, all from Abiko, Japan, and Yuzo Matsumoto and Shunsuke Nishimura, both of Toride, Japan, have developed a sheet processing apparatus and an image processing apparatus. According to the U.S. Patent & ...
Texas Inventor Develops Ornamental Design for Key
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Eugene F. Daugherty of San Antonio has developed an ornamental design for a key, the U.S. Patent & Trademark Office announced. The inventor was issued U.S. Patent No. D533,765 on Dec. 19. The patent has been assigned to Southern Folger Detention ...
California Inventor Develops Vise Jaw with Work Stop
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Michael R. Martens of Orangevale, Calif., has developed vise jaws for attachment to portions of a vise which hold a work piece, such as for performing machining operations upon the work. According to the U.S. Patent & Trademark Office: "A vise jaw is provided ...
Japanese Inventors Develop Amplification Medium Simulation Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Masato Nishihara, Yasushi Sugaya and Etsuko Hayashi, all from Kawasaki, Japan, have developed an apparatus and a method for amplification medium performance simulation and an optical amplifier therewith. According to the U.S. Patent & Trademark Office: "An ...
Massachusetts Inventors Develop Inkjet Receptive, Laser Printable Coat
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Earl C. Spice of Granby, Mass., and Kyle R. Parent of Holyoke, Mass., have developed an inkjet receptive and a laser printable coating for holographic and a metallic media. According to the U.S. Patent & Trademark Office: "One embodiment of an optical ...
Georgia Inventors Develop Image Processing Adaptive Edge Detection Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Nuggehally S. Jayant of Alpharetta, Ga., Seong H. Jang of Doraville, Ga., and Janghyun Yoon of Smyrna, Ga., have developed a method of adaptive edge detection and enhancement for image processing. According to the U.S. Patent & Trademark Office: "The ...
Minnesota Inventors Develop Adjustable Tilt Mount
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Joel W. Pfister of Shorewood, Minn., James G. Wohlford of Minneapolis, and Dominic D. Grey of Blaine, Minn., have developed mounts for interface devices such as computer monitors and televisions. According to the U.S. Patent & Trademark Office: "A mounting ...
U.S., Japanese Inventors Develop Data Storing Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Tetsuro Motoyama of Cupertino, Calif., and Masuyoshi Yachida of Kanagawa, Japan, have developed an approach for storing and maintaining data. According to the U.S. Patent & Trademark Office: "One or more sensors are provided for detecting unauthorized ...
New York Inventors Develop Source Images Spectral Multiplexing System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Gaurav Sharma, Robert P. Loce and Steven J. Harrington, all from Webster, N.Y., and Yeqing Juliet Zhang of Penfield, N.Y., have a method of processing a plurality of source images. According to the U.S. Patent & Trademark Office, the invention relates to ...
Florida Inventors Develop Electro-Optical Device
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Christopher R. Stook of Grant, Fla, and Jerry Busby Wood of Melbourne, Fla., have developed an electro-optical device that includes an amplifier with an input receiving a data signal, a crossing adjustment input, and an output. According to the U.S. Patent ...
Japanese Inventors Develop Image Forming Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Yoshiaki Hiramoto of Yamatokoriyama, Japan, and Akira Nakashima of Kyoto, Japan, have developed a paper feed and output assembly attached to an image forming apparatus. According to the U.S. Patent & Trademark Office, the invention relates to an "image ...
German Inventors Develop Propene to Acrolein Partial Oxidation Process
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Martin Dieterle of Mannheim, Germany, Jochen Petzoldt of Weisenheim am Berg, Germany, and Klaus Joachim Mueller-Engel of Stutensee, Germany, have developed a process for the long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to ...
South Korean Inventors Develop Dispersion Compensating Fiber
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Won Kyoung Lee, Sun Hyok Chang and Moo Jung Chu, all from Daejeon, South Korea, have developed a dispersion compensating fiber (DCF) for S-band discrete Raman amplifier (RA). According to the U.S. Patent & Trademark Office: "A DCF, which is an ...
Japanese Inventors Develop Optical Fiber Cord
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Fuminori Nakajima, Nobuhisa Ishii, Masao Tachikura, Shigenori Uruno and Hisashi Izumita, all from Tokyo, and Hitoshi Ishimaru and Kuniaki Yamaguchi, both of Yamato, Japan, have developed an optical fiber cord that is used for system lines or the like in a bureau or ...
Wisconsin Inventor Develops Ornamental Design for Lock Shackle
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- John Heppner of Kenosha, Wis., has developed an ornamental design for a lock shackle, the U.S. Patent & Trademark Office announced. The inventor was issued U.S. Patent No. D533,764 on Dec. 19. The patent has been assigned to Master Lock Co., Oak ...
Japanese Inventor Develops Image Processing Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Kanya Ishizaka of Kanagawa, Japan, has developed an image processing apparatus, an image processing method, and an image processing program. According to the U.S. Patent & Trademark Office: "A first image enlargement processing section enlarges an original ...
Maine Inventors Develop Current Mode Transfer Logic System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Pravas Pradhan of Portland, Maine, and Jianhong Ju of Gorham, Maine, have developed a current mode transfer logic system that is suitable for driving transmission lines. According to the U.S. Patent & Trademark Office: "In one embodiment a twisted pair ...
German Inventors Develop Manually Operated Implement
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Marc Schmid and Gu Wolf, both of Oppenweiler, Germany, Johannes Menzel of Wernau, Germany, and Helmut Lux of Waiblingen, Germany, have developed a manually operated implement with an internal combustion engine for driving a tool. According to the U.S. Patent ...
Wisconsin Inventor Develops Steam Injection Heater
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Bruce A. Cincotta of Wauwatosa, Wis., has developed a steam injection heater with dual-sealing assembly. According to the U.S. Patent & Trademark Office, the invention relates to a "direct contact steam injection heater that includes a steam diffuser ...
California Inventor Develops Photographic Film Processing Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Eran Steinberg of San Francisco has developed a method of visual cell phone notification of processed film images. According to the U.S. Patent & Trademark Office, the invention relates to a "method relating to film photography and digital delivery of ...
New Jersey Inventor Develops Ornamental Design for Fleur De Lys Bracket
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Ranobir Roychowdhury of Cherry Hill, N.J., has developed an ornamental design for a fleur de lys bracket, the U.S. Patent & Trademark Office announced. The inventor was issued U.S. Patent No. D533,766 on Dec. 19. The original application was filed ...
French Inventor Develops Communication Apparatus with Driver Means
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Philippe Lance of Toulouse, France, has developed a communication apparatus that includes driver means for applying a switched signal to a communication line with a controlled slew rate. According to the U.S. Patent & Trademark Office, the invention ...
California Inventor Develops Single-Input-Multi-Output System Control Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- George Shu-Xing Cheng of Rancho Cordova, Calif., has developed an apparatus and a method for automatically controlling single-input-multi-output systems or processes. According to the U.S. Patent & Trademark Office: "The control output signals of a ...
California Inventor Develops Track-And-Hold Circuit
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Bernd Wuppermann of Pacifica, Calif., has developed a circuit and a method for performing track and hold operations. According to the U.S. Patent & Trademark Office: "A circuit and method for performing track and hold operations utilizes a circuit ...
Japanese Inventors Develop Dimethylolcarboxylic Acid Production Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Toshio Watanabe, Atsushi Iwamoto, Soemu Miyashita and Masafumi Watanabe, all from Okayama, Japan, have developed a method of production of dimethylolcarboxylic acid. According to the U.S. Patent & Trademark Office: "In the method of the present invention, ...
Japanese Inventor Develops Mobile Communication Terminal Management Device
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Junichi Yamagishi of Tokyo has developed a mobile communication terminal and a management apparatus using the same. According to the U.S. Patent & Trademark Office: "The management apparatus comprises a mobile communication terminal comprising a radio unit for ...
Washington Inventor Develops Unmanned Aircraft Handling Apparatus
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Brian T. McGeer of Underwood, Wash., has developed methods and apparatuses for launching, capturing, and storing unmanned aircraft and other flight devices or projectiles. According to the U.S. Patent & Trademark Office: "In one embodiment, the aircraft ...
South Korean Inventors Develop Finite Impulse Response Filter
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Jong In Choi of Anyang-si, South Korea, Sang Yeon Kim of Gunpo-si, South Korea, and Dong Il Han of Seoul, South Korea, have developed a filter, in particular, a finite impulse response (FIR) filter having a variable data input and output rate. According to the ...
California Inventors Develop Programmable Logic Device
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Rafael C. Camarota of Sunnyvale, Calif., and Robert Blake of Saratoga, Calif., have developed a programmable logic with programmable volatility. According to the U.S. Patent & Trademark Office: "Volatility of a programmable logic device or field ...
South Korean Inventors Develop Error Reduction Square Root Calculator
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Bong-soon Kang and Bong-guen Lee, both of Busan, South Korea, Bong-hwan Cho of Gyunggi-do, South Korea, and Young-sun Kim of Suwon, South Korea, have developed a square root (SQRT) calculator capable of calculation with a minimal error. According to the U.S ....
South Korean Inventors Develop Magneto-Optical Storage Medium Fabrication Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Dong Woo Suh, Ho Jun Ryu, Yeung Joon Sohn, Yong Woo Park and Mun Cheol Paek, all from Daejon-Shi, South Korea, have developed a recording layer of magneto-optical storage medium with sublayer and a method of fabricating the same. According to the U.S. Patent ...
British Inventors Develop Broadband Raman Amplifier
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- George Zarris and Rodriguez Fernando Llorente, boyh of London, have developed a wide bandwidth Raman amplifier. According to the U.S. Patent & Trademark Office: "The present invention provides a wide bandwidth, gain flattened Raman amplifier including a ...
Massachusetts Inventors Develop Red Eye Occurrence Automatically Correction Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Matthew D. Gaubatz of Boxborough, Mass., and Robert A. Ulichney of Stow, Mass., have developed a system and a method that automatically detects and corrects the occurrence of red-eye in digital photographs and images without user intervention. According to the ...
Dutch Inventors Develop Discrete-Time Input Signal Sample-Rate Conversion Method
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Engel Roza of Eindhoven, Netherlands, has developed a method of converting the sample rate of a discrete-time input signal. According to the U.S. Patent & Trademark Office, the invention relates to "method and arrangement for converting the sample rate of ...
German Inventors Develop Self-Propelled Combined Harvester
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Dirk Esken of Soest-Meckingsen, Germany, and Berthold Schwersmann of Bad Iburg, Germany, have developed a method of changing throughgoing openings in separation of a concave of a harvester. According to the U.S. Patent & Trademark Office: "A method for ...
California, Wyoming Inventors Develop Real-Time Communication System
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Lester F. Ludwig of Hillsborough, Calif., J. Chris Lauwers of Menlo Park, Calif., Keith A. Lantz of Los Altos, Calif., Gerald J. Burnett of Atherton, Calif., and Emmett R. Burns of Jackson, Wyo., have developed a system for real-time communication between plural ...
Japanese Inventors Develop Polarizing Plate
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Nobuo Kubo of Hachioji, Japan, and Noriyasu Kuzuhara of Kunitachi, Japan, have developed a polarizing plate that is used for a displaying a liquid crystal display. According to the U.S. Patent & Trademark Office, the invention relates to a "polarizing ...
Canadian Inventors Develop Periodic Electrical Signal Frequency Monitor Systems
Dec 27, 2006 ... ALEXANDRIA, Va., Dec. 27 -- Steve Driediger of Kanata, Canada, and Dion Pike of Stittsville, Canada, have developed systems and methods for monitoring frequencies of periodic electrical signals. According to the U.S. Patent & Trademark Office: "According to one technique, a first and ...