Daniel Taylor Gardner

US Patent:

7170666, Jan 30, 2007

Filed:

Jul 27, 2004

Appl. No.:

10/898973

Inventors:

Arthur Raymond Piehl - Corvallis OR, US
Sriram Ramamoorthi - Corvallis OR, US
Daniel C. Gardner - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G02B 26/00
G02F 1/00

US Classification:

359290, 359237

Abstract:

An antireflection surface formed using a plurality of nanostructures of a first material on a surface of a second material. The first material is different from the second material. The distribution of spatial periods of the nanostructures is set by a self-assembly operation. The surface of the second material is converted to operate as a graded index surface that is substantially antireflective for the wavelength of interest.

US Patent:

7529026, May 5, 2009

Filed:

Apr 28, 2005

Appl. No.:

11/116333

Inventors:

Daniel C. Gardner - Corvallis OR, US
Arthur R. Piehl - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G02B 27/10
G02B 26/00
G02F 1/03

US Classification:

359619, 359627, 359290, 359247

Abstract:

An optical system having a radiation transparent member and an anti-reflective embossment embossed into at least one surface of the transparent member. The embossment has spaced structures configured to permit incident radiation to pass through the embossment and the radiation transparent member, and to, at least, attenuate reflection of the incident radiation off the embossment. The structures are maximally spaced from one another by a subwavelength of the incident radiation.

US Patent:

58644865, Jan 26, 1999

Filed:

May 8, 1996

Appl. No.:

8/643291

Inventors:

Andrew S. Deming - Frederick MD
Daniel T. Gardner - Portland OR
James S. Larsen - Hillsboro OR
Bertrand Leigh - Hillsboro OR

Assignee:

Lattice Semiconductor Corporation - Hillsboro OR

International Classification:

G06F 1576

US Classification:

364489

Abstract:

Program data generated by the host system to be used in programming one or more associated ISPLDs is converted using a first interface from a parallel data format to a serial data string and then transmitted serially to a second interface. In one embodiment, the first and second interfaces employ Universal Asynchronous Receiver/Transmitter (UARTs). The receiving unit converts the serial program data string to a parallel data byte which is then provided to the programming pins of the ISPLD desired to be programmed. Signals indicative of information relating to the operation of one or more of the ISPLDs associated with the host system may be provided to the host system via pin SDO of the asserted ISPLD. In this manner, embodiments in accordance with the present invention may utilize a two-wire transmission scheme, and thus two-wire interfaces, to facilitate programming of the associated ISPLDs. Having the capability to utilize a two-wire transmission scheme, in turn, allows ISPLDs in accordance with the present invention to be programmed using wired transmission schemes such as, for instance, twisted pair and coaxial, as well as wireless transmission schemes, such as, for instance, radio frequency (RF) and infrared radiation (Ir).