Patents by Inventor Hoton How

Hoton How has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7242264
    Abstract: Disclosed is one method and one apparatus which teach improved techniques in using a shaped bias magnetic field over the active region of a ferrite stripline circulator/isolator circuit. The axial component of the bias field is decreased from the center toward edge, thus it is able to accommodate the accompanying changes in magnetization. This fulfills the requirements that frequencies are scaled with distances thereby warranting broadband operation. Furthermore, the radial component of the bias field is reduced, so as to minimize the generation of non-circulation volume modes. The discontinuity in magnetization distributed over the circulator/isolator active region is reduced, so as to minimize the generation of magnetostatic surface modes. The resultant circulator/isolator performance can thus show a broad bandwidth with improved characteristics in insertion loss and in isolation.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 10, 2007
    Inventor: Hoton How
  • Patent number: 7239240
    Abstract: Disclosed is one method and one apparatus which teach improved techniques in equipping an RFID with security measure. Conventionally an RFID is employed basically to replace the usage of an infrared bar-code label thereby to supply electronic or digital signature and identification. In this sense, the traditional RFID technology is in lack of security and an RFID can be tampered with in an arbitrary manner not to cause an alert. This is no longer true if an RFID is endowed with security. In this invention an RFID, either an active or a passive device, has the ability to memorize its original spatial position so that if the position is changed without authority, an alarm signal is generated.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: July 3, 2007
    Inventor: Hoton How
  • Publication number: 20070135676
    Abstract: Disclosed are one method and one apparatus which teach techniques to obtain peace of mind. It is believed that quantum entanglement from this physical world can carry information which might be vulnerable to a human's quantum mind especially when one is performing meditation, exercising Qi-Gong, taking rest or relaxation, or at sleep. Protection is thus needed to protect a quantum mind during these mentally weakened situations.
    Type: Application
    Filed: January 25, 2007
    Publication date: June 14, 2007
    Inventor: Hoton How
  • Patent number: 6992539
    Abstract: Disclosed is a method and an apparatus enabling operation of balanced phase shifts providing uniformity that the insertion loss do not show variation with the derived angles in phase shift. The invention incorporates a resonator supporting nonreciprocal wave propagation. The resonator is divided in two equal parts showing symmetry so that the change in electronic parameters from one part of the resonator counter balances the other part, thereby causing no change to the resonance condition. Amplifiers are thus not needed by the phase-shift operation. Electronically active materials, such as ferrites, ferroelectrics, and/or varactors, are utilized, and the phase shifter device can be fabricated assuming a variety of transmission-line geometries, such as microstrips, striplines, waveguides, coax lines, parallel wires, coplanar waveguides, image lines, fin lines, and slot lines, providing versatility and convenience in applications.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: January 31, 2006
    Inventor: Hoton How
  • Patent number: 6963254
    Abstract: Disclosed are one method and one apparatus which enable a non-reciprocal microwave resonator to be coupled in and out at various positions showing the circular symmetry. As such, the transmission phase, but not the amplitude, can be varied, resulting in the operation of a digital phaser. The resonator is electrically connected to two network feeders each of which provides separate phase selectivity. The overall phase selectivity of the phaser is the product of the selectivities of these two network feeders, resulting in a less volume, and hence reduced fabrication costs.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: November 8, 2005
    Inventor: Hoton How
  • Patent number: 6744366
    Abstract: Disclosed is a method and an apparatus implying nearly 100% security with a tag system showing low cost and compact volume. Like a conventional tag, the disclosed tag system will respond properly to an interrogation signal. In addition, the disclosed tag system is able to monitor the environment local to a merchandise. Whenever the merchandise package is opened and/or impaired, alarm will be generated on the spot. It is almost impossible to disarm the tag system, unless a password is attained. The disclosed tag system shows a high sensitivity, and it does not need an electronic searching machine, or an interrogation gate, to operate. When combined with an electromagnetic transmitter, a smart tag system results, allowing merchandise to be traced on the computer screen, capable of performing discriminative tasks according to the imposed regulation rules on the merchandise IDs.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: June 1, 2004
    Inventor: Hoton How
  • Patent number: 6730235
    Abstract: Disclosed is a method and an apparatus enabling water-conditioning processes to be performed using a heater initially equipped with an aquarium tank for the purpose of supplying heat. Instead of allowing heat to propagate globally, reactor housing is introduced in the tank enclosing the heater so as to form a localized hot zone. The temperatures of the hot zone are maintained at high degrees sufficient to initiate various water-conditioning processes with efficiency, including alga control, ammonia control, water-hardness control, and sterilization. The construction of the reactor housing is simple and inexpensive, and its geometry is compatible to a heater which can be purchased commercially. In short, multiple functions are added to a heater installed in an aquarium, performing water-conditioning processes in addition to the basic task of supplying heat, allowing water quality of the aquarium to be improved and maintained.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: May 4, 2004
    Inventors: Hoton How, Yung-Ching Chu
  • Patent number: 6633160
    Abstract: Disclosed is a method for improving the sensitivity of a fluxgate magnetometer for which high-order harmonics are detected and utilized in determining a weak external magnetic field expressed in the core region. These harmonic signals are processed coherently so as to increase the signal-to-noise ratio, since noise can only add to the signal incoherently at these harmonic frequencies. Also disclosed is a method for improving the sensitivity of a fluxgate magnetometer for which the technique of waveform autocorrelation is used in determining a weak external magnetic field expressed in the core region. By convolving the gated signal with a waveform duplicating the signal itself, noise content is effectively suppressed, thereby increasing the resolution power of the fluxgate magnetometer.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: October 14, 2003
    Inventors: Hoton How, Carmine Vittoria
  • Publication number: 20030189489
    Abstract: Disclosed is a method and an apparatus implying nearly 100% security with a tag system showing low cost and compact volume. Like a conventional tag, the disclosed tag system will respond properly to an interrogation signal. In addition, the disclosed tag system is able to monitor the environment local to a merchandise. Whenever the merchandise package is opened and/or impaired, alarm will be generated on the spot. It is almost impossible to disarm the tag system, unless a password is attained. The disclosed tag system shows a high sensitivity, and it does not need an electronic searching machine, or an interrogation gate, to operate. When combined with an electromagnetic transmitter, a smart tag system results, allowing merchandise to be traced on the computer screen, capable of performing discriminative tasks according to the imposed regulation rules on the merchandise IDs.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 9, 2003
    Inventor: Hoton How
  • Publication number: 20030178352
    Abstract: Disclosed is a method and an apparatus enabling water-conditioning processes to be performed using a heater initially equipped with an aquarium tank for the purpose of supplying heat. Instead of allowing heat to propagate globally, reactor housing is introduced in the tank enclosing the heater so as to form a localized hot zone. The temperatures of the hot zone are maintained at high degrees sufficient to initiate various water-conditioning processes with efficiency, including alga control, ammonia control, water-hardness control, and sterilization. The construction of the reactor housing is simple and inexpensive, and its geometry is compatible to a heater which can be purchased commercially. In short, multiple functions are added to a heater installed in an aquarium, performing water-conditioning processes in addition to the basic task of supplying heat, allowing water quality of the aquarium to be improved and maintained.
    Type: Application
    Filed: March 21, 2002
    Publication date: September 25, 2003
    Inventors: Hoton How, Yung-Ching Chu
  • Publication number: 20030174124
    Abstract: Disclosed is a method and an apparatus enabling operation of a mini-mouse which is installed at the tip of an finger. Three advantages result by using a mouse at finger tip. First, the mouse can be applied to and hence manipulated by a thumb so that the mouse operation is consistent with the action of typing involving a keyboard. By doing so the typing action is not much disturbed by the mouse operation. Secondly, the mouse at finger tip provides the function of an input-pen device to be applied to surfaces of any kind, not necessarily to be restricted to a finite window imposed by a special pad. Thirdly, the disclosed mouse device shows a compact size providing effective control over cursor movement with ease and efficiency. This last advantage is most desired by a handheld computer.
    Type: Application
    Filed: March 12, 2002
    Publication date: September 18, 2003
    Inventor: Hoton How
  • Publication number: 20030171079
    Abstract: Disclosed is a method and two apparatuses enabling suction control over surface cleaning and scraping. Suction control is necessary so as to obtain good contact between a cleaning/scraping pad and the surface to be cleaned/scraped, thereby achieving efficiency. Also, suction control is required so as to collect debris falling off during the cleaning/scraping process, which may otherwise contaminate the environment. Suction control provides guidance for the movement of a cleaning/scraping pad sucked on the surface of an object. This implies convenience when cleaning/scraping over a large surface area is attempted. Suction action is generated by convecting away surrounding fluid, being either water or air, to produce local negative pressure at the pad position. The disclosed devices are most desirable in cleaning water containers, such as a fish tank or a swimming pool, as well as to collect dusts on scraping the surface of a mortar wall.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 11, 2003
    Inventors: Hoton How, Yung-Ching Chu
  • Publication number: 20030167559
    Abstract: Disclosed is a method and two apparatuses enabling refrigerated wearing and dressing. A refrigerant substance in condensed phase undergoing sublimation or evaporation into gaseous phase will absorb heat. By convecting the sublimated or evaporated phase of the refrigerant substance onto areas surrounding a wearing or a dressing, temperatures nearby can thus be lowered, resulting in comfort on wearing or dressing. Refrigeration in this manner is effective, since sublimation heat and evaporation heat are much more pronounced than can otherwise be obtained via using a battery or a dry cell, for example. Refrigerant can be placed in a container providing convenience in use, allowing for refill or replacement when depleted. Refrigerated clothes, hats, hamlets, etc., are in great need by our communities, in situations whenever it requires walking across air-conditioned stations, working under the sun or before a furnace, driving a motorcycle with an air-tight hamlet, and so forth.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 11, 2003
    Inventors: Hoton How, Yung-Ching Chu
  • Publication number: 20030146031
    Abstract: Disclosed is a method for establishing and utilizing annotated electronic tracks on road for ground vehicles so as to ease the driving task with added safety, efficiency, and economy. Electronic tracks define traces on roads guiding the movement of a ground vehicle in as much as the same way that railroad tracks confine the movement of a train. Road track marks are detected using electronic transducers which generate control signals on the wheels to maintain the trajectory of a ground vehicle confined to a predetermined trace on road. A ground-vehicle train can thus be set up on road, requiring one driver to navigate or manipulate the movement of the whole train consisting of many ground vehicles. Annotations are also provided by electronic tracks on road. When combined with other technologies, such as electronic maps, internet connections, and collision avoidance radars, the driving of a ground vehicle on road suppling annotated electronic tracks can be fully computerized thereby achieving automation.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 7, 2003
    Inventor: Hoton How
  • Patent number: 6577933
    Abstract: Disclosed is a method for establishing and utilizing electronic tracks on roads for ground vehicles so as to ease the driving task with added safety and efficiency. Electronic tracks define traces on roads guiding the movement of a ground vehicle in as much as the same way that railroad tracks confine the movement of a train. Speed control can be achieved by using equipments detecting the driving conditions and the road environment along with the gliding action of the ground vehicle on electronic tracks. Automation in driving is thus possible, at least partially. Electronic map can be constructed consisting of many of the electronic tracks. Based upon both the static and dynamic information on roads, an electronic map is able to configure an optimal route connecting two addresses with the shortest time in traveling.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: June 10, 2003
    Inventor: Hoton How
  • Patent number: 6541967
    Abstract: Disclosed is a method for achieving miniature fluxgate circuits capable of remotely sensing local dynamic magnetic fields. By synchronizing the excitation currents of the sensor core with the time-varying magnetic signals, the sensitivity can thus be improved, thereby enabling dynamic measurements at high speed. Also disclosed is a magnetic recording head device which uses a fluxgate magnetometer to measure a sequence of magnetic digital data bits, capable of providing dual reading and writing functions at high speeds, whose fabrication is fully compatible with the current printing circuit technologies.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 1, 2003
    Inventor: Hoton How
  • Publication number: 20020180434
    Abstract: Disclosed is a method for improving the sensitivity of a fluxgate magnetometer for which high-order harmonics are detected and utilized in determining a weak external magnetic field expressed in the core region. These harmonic signals are processed coherently so as to increase the signal-to-noise ratio, since noise can only add to the signal incoherently at these harmonic frequencies. Also disclosed is a method for improving the sensitivity of a fluxgate magnetometer for which the technique of waveform autocorrelation is used in determining a weak external magnetic field expressed in the core region. By convolving the gated signal with a waveform duplicating the signal itself, noise content is effectively suppressed, thereby increasing the resolution power of the fluxgate magnetometer.
    Type: Application
    Filed: April 19, 2001
    Publication date: December 5, 2002
    Inventors: Hoton How, Carmine Vittoria
  • Patent number: 6483393
    Abstract: Disclosed is a method and two devices for obtaining phase shifts by using a non-reciprocal resonator supporting single-mode operation. As such, wave propagation in the resonator is unambiguous in phase, allowing the phase to be coupled in or out at different positions. This results in novel phase shifter devices of two kinds: One kind of the devices suggests to change the coupling positions by using switches, and the other kind suggests to use a movable port to be driven by a step motor, for example. In this invention the phase-shift function performed by a non-reciprocal resonator invokes no use of a transmission line, none for the adjustment in its electronic properties, including permittivity and permeability. The operation of the disclosed phase shifter devices is uniform, being independent of the phase-shift angles, exhibiting low insertion loss and low return loss.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: November 19, 2002
    Inventor: Hoton How
  • Publication number: 20020169528
    Abstract: Disclosed is a method for establishing and utilizing electronic tracks on roads for ground vehicles so as to ease the driving task with added safety and efficiency. Electronic tracks define traces on roads guiding the movement of a ground vehicle in as much as the same way that railroad tracks confine the movement of a train. Speed control can be achieved by using equipments detecting the driving conditions and the road environment along with the gliding action of the ground vehicle on electronic tracks. Automation in driving is thus possible, at least partially. Electronic map can be constructed consisting of many of the electronic tracks. Based upon both the static and dynamic information on roads, an electronic map is able to configure an optimal route connecting two addresses with the shortest time in traveling.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 14, 2002
    Inventor: Hoton How
  • Patent number: 6479768
    Abstract: Disclosed is a method and a device for obtaining precision data acquisition via hand writing/drawing without requiring the use of a transducer pad, the screen of a monitor, or a scanner. As such, writing/drawing can be applied to almost all kinds of material surfaces, including books, fabrics, labels, etc., with or without showing an ink mark. Graphic and text images can all be effectively processed. Data acquisition function is accomplished by continuously monitoring the orientation of a magnet ball installed at the tip of a magnetomechanical ball-pen device whose outlook resembles a regular pen. When powered by a battery with self data-storage capability, the disclosed method and device allow for a new class of instrumentations that data acquisition function is carried out at the same time whenever hand writing/drawing is applied in the normal manner.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: November 12, 2002
    Inventor: Hoton How