Robert F Lang

US Patent:

7177340, Feb 13, 2007

Filed:

Nov 4, 2003

Appl. No.:

10/701258

Inventors:

Robert J. Lang - Alamo CA, US
Robert G. Waarts - Los Altos CA, US

Assignee:

JDS Uniphase Corporation - Milpitas CA

International Classification:

H01S 3/10
H01S 3/08

US Classification:

372102, 372 96, 372 22

Abstract:

A laser apparatus is disclosed utilizing a laser diode having a reflective back facet and a front facet having a reflectance of less than about 1% for emitting an optical beam at a fundamental frequency along an optical path. A collimating lens is provided for collimating the optical beam into a collimated beam. A transmission grating is optically coupled to receive the collimated beam and returns a portion of the collimated beam back into the laser diode by means of diffraction through lens and the laser diode front facet. The laser diode reflective back facet and the transmission grating form an extended laser cavity. In operation, a substantial portion of the collimated beam is transmitted through the transmission grating for producing the laser output beam propagating along the optical path.

US Patent:

7435942, Oct 14, 2008

Filed:

Dec 2, 2005

Appl. No.:

11/292470

Inventors:

Robert J. Lang - Alamo CA, US

Assignee:

Cypress Semiconductor Corporation - San Jose CA

International Classification:

H01J 40/14

US Classification:

250221, 345166, 382107

Abstract:

A signal processing method is provided for sensing movement of an optical sensor relative to a surface. Generally, the method includes steps of: (i) generating sets of signals responsive to motion along each of a first, second, and third direction, the directions not necessarily all different, (ii) combining the sets of signals to generate a first complex signal for each direction at a first time; (iii) combining the sets of signals to generate a second complex signal for each direction at a second time subsequent to the first time; (iv) computing a third complex signal for each direction wherein each of the third complex signals is a predicted value for each of the second complex signals, the predicted signal depending on a number of values representing distance moved; and (v) determining optimum values of the values representing distance moved by minimizing differences between the second and third complex signals.

US Patent:

D589344, Mar 31, 2009

Filed:

Apr 23, 2008

Appl. No.:

29/317118

Inventors:

Robert J. Lang - Alamo CA, US

International Classification:

0903

US Classification:

D 9431

US Patent:

D589345, Mar 31, 2009

Filed:

Jul 31, 2008

Appl. No.:

29/322280

Inventors:

Robert J. Lang - Alamo CA, US

International Classification:

0903

US Classification:

D 9431

US Patent:

7681784, Mar 23, 2010

Filed:

Aug 11, 2008

Appl. No.:

12/189328

Inventors:

Robert J. Lang - Alamo CA, US

International Classification:

B65D 3/20

US Classification:

229138, 229 55, 229404

Abstract:

A container with an integrated foldable closure system containing a secure locking mechanism. The container is provided with an upper edge divided by a series of mountain and valley folds into a set of triangular and quadrilateral panels. When the panels are folded down on the given folds, the panels interlock and extend beyond the centroid of the closure, thereby providing a secure locking mechanism. Also disclosed is a simple method for closing said container.

US Patent:

8217334, Jul 10, 2012

Filed:

Dec 24, 2008

Appl. No.:

12/317521

Inventors:

Robert J. Lang - Alamo CA, US
Jahja I. Trisnadi - Cupertino CA, US
Steven Sanders - Los Altos CA, US

Assignee:

Cypress Semiconductor Corporation - San Jose CA

International Classification:

G06M 7/00
G06F 3/033

US Classification:

250221, 345166

Abstract:

An optical navigation sensor (ONS) is provided having a spatial frequency filter to transmit radiation at selected spatial frequencies while attenuating other, undesired frequencies and harmonics. The ONS includes a radiation source to transmit radiation toward a portion of a surface that diffusely reflects radiation incident thereon. The spatial frequency filter is disposed to receive radiation scattered from the surface, and, in one embodiment, includes a number of non-circular openings to pass radiation of at least one pre-selected frequency while attenuating other frequencies and harmonics of the pre-selected frequency.

US Patent:

8263921, Sep 11, 2012

Filed:

Aug 6, 2007

Appl. No.:

11/890651

Inventors:

Robert J. Lang - Alamo CA, US
Brian Todoroff - San Jose CA, US
Yansun Xu - Mt. View CA, US
Jeffry C. Bailey - Newark CA, US

Assignee:

Cypress Semiconductor Corporation - San Jose CA

International Classification:

G06F 3/033
G09G 5/08

US Classification:

2502062, 250221, 345166, 702189

Abstract:

One embodiment relates to a method of tracking motion using a speckle-based motion sensor. A distance moved is determined by a first signal processing procedure, and a distance moved is determined by a second signal processing procedure. Selection between said distances is made based on whether the distance determined by the first signal processing procedure exceeds a predetermined threshold distance. According to a preferred embodiment, the first signal processing procedure makes a more accurate determination of distance for slower speeds, while the second signal processing procedure makes a more accurate determination of distance for higher speeds. Other embodiments, aspects and features are also disclosed.