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Ng, Kowloon
Charles Wang Wai Ng, Kowloon CN
| Patent application number | Description | Published |
|---|---|---|
| 20090049924 | HIGH SUCTION DOUBLE-CELL EXTRACTOR - A high suction double-cell extractor includes an outer cell defining an outer chamber, and an open-ended inner cell defining an inner chamber. The inner chamber is bottle-shaped and has a neck. The high suction double-cell extractor also includes a vertical loading system for applying axial force on a soil specimen during extraction. The high suction double-cell extractor also includes a port for introduction of pressurized air supply into the outer and inner cells. The introduced pressurized air can apply cell pressure on the soil specimen during extraction. The high suction double-cell extractor also includes a relative humidity control system and a differential pressure detector system. The high suction double-cell extractor can be used to measure stress-dependent soil-water characteristics curve (SDSWCC) under various stress states three-dimensionally and more accurately, and under total suction up to 8,000 kPa. | 02-26-2009 |
Chik Wai Ng, Kowloon HK
| Patent application number | Description | Published |
|---|---|---|
| 20090045867 | FUSE CELL AND METHOD FOR PROGRAMMING THE SAME - The fuse cell architecture | 02-19-2009 |
| 20090146749 | Low-Voltage Oscillator with Capacitor-Ratio Selectable Duty Cycle and Single-Input Sub-Threshold-Conducting Comparators to S-R Latch - An oscillator operates at a very low voltage yet has a duty cycle that is set by a ratio of capacitors that are charged and discharged. Sub-threshold p-channel transistors conduct sub-threshold currents below the normal threshold voltage, and drive set and reset inputs of a set-reset S-R latch. The S-R latch drives the oscillator outputs. The oscillator outputs feed back to charging p-channel transistors that charge one plate of the capacitors. During half of the cycle, the charging p-channel transistor is off, allowing one plate of the capacitors to discharge through an n-channel discharge transistor. After a period of discharge determined by the capacitance of the capacitor, the gate of a sub-threshold p-channel transistor falls enough for sub-threshold current to flow, triggering the set or reset input of the S-R latch. Since sub-threshold currents are needed to toggle the S-R latch, the oscillator begins to oscillate below the threshold voltage. | 06-11-2009 |
| 20100073070 | Low Voltage High-Output-Driving CMOS Voltage Reference With Temperature Compensation - A bandgap reference voltage generator has a first stage that generates a first current that is complementary-to-absolute-temperature (Ictat) and a second stage that generates a current that is proportional-to-absolute-temperature (Iptat). The Ictat and Iptat currents are both forced through a summing resistor to generate a voltage that is relatively independent of temperature, since the Ictat and Iptat currents cancel out each other's temperature dependencies. A PMOS output transistor drives current to an output load to maintain the load at the reference voltage. An op amp drives the gate of the PMOS output transistor and has inputs connected to emitters of PNP transistors in the second stage. A series of resistors generate the reference voltage between the PMOS output transistor and ground and drives bases of the PNP transistors and includes the summing resistor. Parasitic PNP transistors in an all-CMOS process are used. The generator operates with a 1-volt power supply. | 03-25-2010 |
David Chik Wai Ng, Kowloon HK
| Patent application number | Description | Published |
|---|---|---|
| 20090091399 | LOW VOLTAGE SYNCHRONOUS OSCILLATOR FOR DC-DC CONVERTER - Systems and methods which provide an oscillator circuit outputting non-overlapping trigger signals throughout a range of operating voltages using a reset-set (RS) flip-flop type circuit configuration are shown. Embodiments utilize output driver buffers internal to the RS flip-flop circuit configuration to provide oscillator feedback delay. Feedback control circuitry may be implemented to ensure that the delay associated with any one driver buffer does not solely provide the feedback delay. Embodiments further implement input delay circuitry adapted to maintain a relatively constant reset and set input feedback delay ratio throughout a large range of operating conditions. | 04-09-2009 |
Frency Sau Fun Ng, Kowloon CN
| Patent application number | Description | Published |
|---|---|---|
| 20090112171 | Urine bag pocket - The present invention relates to clothing items such as pants or shoulder bags incorporating urine bag pockets suitable for holding a urine bag. Through the invention, incontinence sufferers are able to maintain mobility while still concealing a urine bag. | 04-30-2009 |
Ho Shan Ng, Kowloon HK
| Patent application number | Description | Published |
|---|---|---|
| 20080239325 | Optical sensing methods and apparatus - A method of sensing movement or proximity of objects by optical reflection is provided. The method includes the steps of transmitting a train of optical pulses towards a destination, sensing optical pulses reflected from the destination, and sensing and evaluating movement or proximity characteristics of objects at the destination with reference to variation in pulse width between transmitted and reflected optical pulses. | 10-02-2008 |
| 20090059373 | Actuator for linear motion and tilting motion - There is provided an actuator used in an optical system comprising a housing, a carrier disposed at least partly inside the housing, and a plurality of linear motion transducers coupled to the carrier and substantially evenly spaced around the carrier within the housing. Each linear motion transducer is able to produce linear motion when energized displacing the carrier relative to the housing to produce linear motion, tilting motion, or both of the carrier. | 03-05-2009 |
Karen Ng, Kowloon HK
| Patent application number | Description | Published |
|---|---|---|
| 20120084220 | PRODUCT CERTIFICATION SYSTEM AND METHOD - Systems and methods are provided for generating a certificate of compliance for a product. A product control system (PCS) retrieves specification and/or regulatory data for a particular product and compares the retrieved data to test result data obtained for that particular product. The PCS generates a product certification if the test result data indicates that the product is in compliance with the specification data and/or the regulatory data. A product test plan generation system (PTPGS) enables a user to interact with a user interface to retrieve a test plan for a particular product. The test plan can be used to obtain test results for the particular product. | 04-05-2012 |
Ki Churk Ng, Kowloon HK
| Patent application number | Description | Published |
|---|---|---|
| 20110290778 | HAIR FLAT IRON WITH LIGHT SOURCE - A hair styling appliance including a first arm pivotable with respect to a second arm. Each arm has a respective housing and heat plate, the heat plate at least partially defines a styling portion of each arm. The appliance also includes a light source positioned to illuminate a work area adjacent the styling portions. | 12-01-2011 |
Nga Yung Ng, Kowloon CN
| Patent application number | Description | Published |
|---|---|---|
| 20090288466 | Isothermal forming system for production of sheet metal parts - The present invention relates to an apparatus for attachment to a conventional sheet metal forming press. The apparatus allows the sheet metal forming process to be preformed fully submerged in an oil. Methods for sheet metal forming in oil are also provided. | 11-26-2009 |
Pak-Hong Ng, Kowloon HK
| Patent application number | Description | Published |
|---|---|---|
| 20090001251 | Methods and apparatus for backlight calibration - Methods and apparatuses for backlight calibration are described. The apparatus | 01-01-2009 |
| 20090273946 | Illumination module, and a display and general lighting apparatus using the same - The present invention provides an illumination module, and a display and a general lighting apparatus using the same. Said illumination module includes a plurality of light guiding strips arranged in juxtaposition with a predefined distance; a plurality of light sources, disposed on at least one end of said light guiding strips respectively for providing the light into said light guiding strips; and a plurality of light reflecting units, disposed between said light guiding strips for reflecting the light from said light guiding strips. The light reflecting units according to the present invention can guide the light from the sides of light guiding strips or other light not toward the right side of the illumination module back to the right side of the illumination module, and thus improving the light output efficiency and uniformity. | 11-05-2009 |
Wing Leung Ng, Kowloon CN
| Patent application number | Description | Published |
|---|---|---|
| 20100005613 | WET/DRY FLOOR CLEANING UNIT AND METHOD OF CLEANING - A floor cleaning device comprises a base portion for movement along a surface and a handle portion pivotally connected to the base. The base portion further includes a suction nozzle and a brush assembly for agitating the surface, wherein the brush assembly and the nozzle assembly are in a first position raised off of the surface for vacuuming saw the surface, and the nozzle assembly is lowered to a second position contacting the surface for collecting and picking up liquid and dirt from the surface. A method of cleaning a surface by first dry vacuuming the surface using a cleaning unit in which the nozzle assembly is raised to pick up particles and then wet vacuuming the floor with the nozzle assembly lowered to collect and pick up dirt from the floor mixed with cleaning solution distributed on the floor. | 01-14-2010 |