Samuel Kwokleung Wong

US Patent:

50381520, Aug 6, 1991

Filed:

May 17, 1990

Appl. No.:

7/524602

Inventors:

Mon N. Wong - Torrance CA
Samuel S. Wong - Lawndale CA
Gregory D. Kroupa - Hawthorne CA
Robert C. Perpall - Manhattan Beach CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

H01Q 1302
H01Q 1922

US Classification:

343756

Abstract:

A broad band omnidirectional monocone antenna 10 having a wide operative frequency spectrum and a large elevation angle A is disclosed herein. The antenna 10 of the present invention includes an input circular waveguide network 12 and 18 for providing electromagnetic energy of at least one polarization. Coupled to the circular waveguide network 12 and 18 is a dielectric-loaded waveguide arrangement 22 for projecting a first electromagnetic beam. The inventive antenna 10 further includes a parasitic element network 32, 34, and 36 positioned in the path of the first beam. The parasitic element network 32, 34, and 36 is disposed to form a parasitic beam in response to the first beam. In a particular embodiment of the inventive antenna 10 a beam shaping cone 40 circumscribes the dielectric waveguide arrangement 22. The cone 40 is adapted to augment the elevation angle A characterizing the antenna 10 of the present invention by redirecting the parasitic beam.

US Patent:

62721844, Aug 7, 2001

Filed:

Dec 17, 1997

Appl. No.:

8/992034

Inventors:

Jonathan H. Ta - Irvine CA
Samuel T. Wong - Rowland Heights CA
Stanley C. Hsieh - Diamond Bar CA
Sandeep Rajpal - Irvine CA

Assignee:

Conexant Systems, Inc. - Newport Beach CA

International Classification:

H03D 300
H04L 2714

US Classification:

375334

Abstract:

A non-coherent frequency shift keying detection scheme. The invention has been applied to the special case of capturing caller ID information when the voice-band modem is in the low power mode. The technique provides the capability for capturing and decoding enough of the caller ID information transmitted by the telephone company while the computer is in the sleep or low power mode, and upon awakening the computer can use this captured information to decode the actual caller ID information. Additionally, this invention automatically accommodates both the Bell 202 or V. 23 transmission standards by utilizing a threshold concept in which the time that has elapsed between the zero crossings of an FSK tone half cycle are measured. The elapsed times may be used as an indication of which FSK tone has been transmitted thus allowing capture of caller ID information. The bit output of the caller ID capture circuit is output for storage by RAM thus allowing use by the computer when it wakes up.

US Patent:

53222466, Jun 21, 1994

Filed:

Aug 12, 1991

Appl. No.:

7/743667

Inventors:

Preston A. Henne - Irvine CA
Walter S. Boronow - Cerritos CA
Samuel L. Wong - Laguna Hills CA
Willard D. Himebaugh - Westminster CA

Assignee:

McDonnell Douglas Corporation - Long Beach CA

International Classification:

B64D 1500

US Classification:

244134E

Abstract:

An aft facing step situated across the span of an airfoil. A chemical or thermal deicing or running wet anti-icing device is located in or on the airfoil upstream of the step, and causes water to run back towards the step. The step suddenly reduces the thickness of the airfoil chord section, which causes a disturbance in the boundary layer across the span of the airfoil downstream of the step. The aforementioned disturbance causes runback water to form droplets and be blown clear of the airfoil surface downstream of the step, thereby preventing ice from being formed on the airfoil surface downstream of the step.

US Patent:

47976438, Jan 10, 1989

Filed:

Oct 23, 1987

Appl. No.:

7/111825

Inventors:

Mon N. Wong - Torrance CA
Samuel S. Wong - Lawndale CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

H01P 518

US Classification:

333115

Abstract:

A microwave crossover by which an electromagnetic wave can crossover from one waveguide to another waveguide is formed completely within a planar structure having two hybrid couplers arranged in tandem with output ports of the first coupler connected to input ports of the second coupler. Each coupler is formed of an electrically conductive housing and two electrically conducting bars disposed therein and insulated therefrom. The bars are disposed in a common plane and are equally spaced from top and bottom walls of the housing. A central portion of each bar is angled relative to end portions of the bars to permit a crossing over of the bars at the central portions thereof. Each of the central portions is formed with a notch which engages with the notch of the other bar while maintaining a gap therefrom, the notches permitting the crossover to occur in the foregoing plane. Ends of the bars protrude through openings in the housing in the form of coaxial transmission lines. The crossing of the bars has the effect of a twist of central conductors of the coaxial lines resulting in a relocation of the ports of the coupler such that the two input ports are on an input side of the coupler, and two output ports are on an output side of the coupler.

US Patent:

20190207308, Jul 4, 2019

Filed:

Jun 15, 2018

Appl. No.:

16/009365

Inventors:

Gary Gwoon Wong - Torrance CA, US
Kalem Gwoon Wong - Torrance CA, US
Samuel Wahon Wong - Torrance CA, US

International Classification:

H01Q 3/20
H01Q 1/27
H01Q 1/36
H01Q 21/24
H01Q 1/42
H01Q 15/16

Abstract:

A highly efficient electronical and mechanical beam pointing vehicle antenna is disclosed. The structure is designed for a vehicle to maintain continued communication with a satellite while the vehicle is in motion. The structure is comprised of a group of left and right hand circularly polarized elements which are located and fixed to the center of the antenna structure. These feed elements are stacked and are electronically phased to obtain the elevation pointing. The feeds are wrapped around by a vane type polarizer which is designed to provide simultaneous operation of left and right hand circularly polarized signals and the radiation of the feed elements are symmetrically radiated over the entire 360 degree horizontal field of view. A very light weight mechanical driven parabolic cylindrical reflector, revolving around the feed assembly, is implemented to provide the 360 degrees azimuth coverage. The number of feed elements and the size of the parabolic cylindrical reflector are selected to satisfy the gain and beam performance needs. The parabolic cylindrical reflector and the symmetrical radiating feed elements are configured to help simplify the implementation of a beam pointing antenna to be placed on a moving vehicle. The design is configured for X-Band operation. However, the design and construction of the apparatus is applicable to other frequencies as well.