Lan Yuen Lee

6430067, Aug 6, 2002

Apr 12, 2001

09/834155

Lan Lee - Palo Alto CA

Sun Microsystems, Inc. - Palo Alto CA

H02M 318

363 60

A method and apparatus for a voltage multiplier is disclosed that includes a first stage for receiving an input voltage and a first control signal; inverting the first control signal to produce a second control signal; and outputting a first output voltage and the second control signal. The voltage multiplier also includes a second stage for receiving the first output voltage and the second control signal; and outputting a third output voltage. The first output voltage is higher than the input voltage and the second output voltage is higher than the first output voltage.

20120176125, Jul 12, 2012

Jan 12, 2011

13/005007

Lan Lee - Palo Alto CA, US
Shanshan Lee - Palo Alto CA, US

G01B 7/30
H02K 7/18
G01B 11/26

32420725, 35613909, 290 1 R

A device for sensing positions of a rotating wheel comprises a rotating wheel with a symmetrical weight distribution, with the rotating wheel being rigidly attached to an axle; a stationary plate coaxial with the rotating wheel, the stationary plate being free to rotate about the axle and having an asymmetrical weight distribution to keep the stationary plate stationary due to the forces of gravity; and a position sensor to sense positions of the rotating wheel.

20120306327, Dec 6, 2012

Jun 2, 2011

13/151824

Lan Lee - Palo Alto CA, US
Shanshan Lee - Palo Alto CA, US

B62J 6/12
H02K 7/18

310 67 A

Provided are electricity generating bicycle wheel assemblies configured to generate electrical power. In certain embodiments, an electricity generating bicycle wheel assembly includes a hub, and an axle protruding through and rotatably attached to the hub, such that the axle is configured to rigidly attach to a bicycle frame on each side of the hub. The assembly also includes an electrical generator positioned within the hub and rigidly attached to the axle. The electrical generator includes a generator axle rotatably coupled to the hub such that rotation of the hub with respect to the axle facilitates rotation of the generator axle with respect to the electrical generator.

61218715, Sep 19, 2000

Mar 1, 1999

9/260583

Lan Lee - Palo Alto CA
Cong Khieu - San Jose CA

Sun Microsystems, Inc. - Palo Alto CA

G05B 100

3401462

A circuit for comparing two digital words has a set of bit compare circuits that generate a set of compare signals. Each bit compare circuit receives a first bit from a first digital word and a corresponding bit from a second digital word and generates one compare signal that indicates a match between the first bit and the corresponding bit. In response to the set of compare signals, a composite match detector circuit generates a composite match signal. A last bit detector circuit generates a last bit signal that indicates a match between a last bit from the first digital word and a last bit from the second digital word. When the last bit signal is received, a match hit generator circuit generates a match hit signal based on the composite match signal and the last bit signal.

57932484, Aug 11, 1998

Jul 31, 1996

8/690008

Lan Lee - San Francisco CA
Saleel Awsare - San Francisco CA

Exel Microelectronics, Inc. - San Jose CA

H03K 301

327543

A current source providing a voltage-controlled variable-current reference is described which employs a conventional current mirror to supply a current to a diode-connected transistor, and to a plurality of controllable current paths, wherein the controllable current paths are controlled by voltages from a voltage sensing circuit so that predetermined amounts of current are drawn away from the diode-connected transistor as function of a controlled voltage, so that the diode-connected transistor generates a voltage as a function of the current flowing through it which voltage is used to control an output transistor and a current flowing through the output transistor.

61631922, Dec 19, 2000

Feb 26, 1999

9/259148

Lan Lee - Palo Alto CA
Hiep P. Ngo - Sunnyvale CA
Cong Khieu - San Jose. CA

Sun Microsystems, Inc. - Palo Alto CA

H03K 3356

327212

A negative edge triggered flip-flop generates an output pulse in response to a negative edge of a clock signal. A first set of nodes receives data input signals, and a second set of nodes receives select input signals for selecting one data input signal as a selected data input signal. The clock node receives the clock signal which has a positive edge and a negative edge. A header circuit connects to the second set of nodes and to the clock node, and integrates the clock signal with the select input signals to generate at least one control signal. A pulse generator circuit connects to the first set of nodes, the header circuit and the output node. The pulse generator circuit generates an output pulse on the output node in response to a control signal and the selected data input signal.

20220254315, Aug 11, 2022

Jan 18, 2022

17/577780

- Shenzhen, CN
Lan Lee - Palo Alto CA, US

G09G 3/36
G02F 1/1362

A display control circuit applies to a LCoS panel including pixel units and a substrate. The display control circuit includes a pixel memory array circuit and a driving circuit. The pixel memory array circuit includes pixel memory units. A projection of the pixel memory array circuit on the substrate is in a projection of the pixel units on the substrate. The driving circuit includes a row driving circuit and a column driving circuit. A projection of the driving circuit on the substrate is outside the projection of the pixel units on the substrate. The driving circuit provides a modulation signal and pixel data. The pixel memory array circuit modulates the pixel data by the modulation signal to provide a pixel display voltage to each of the pixel units.