Roman O Schilter

US Patent:

20070070691, Mar 29, 2007

Filed:

Sep 21, 2006

Appl. No.:

11/533971

Inventors:

Dirk Walvis - Santa Cruz CA, US
Stephen Bennett - San Francisco CA, US
Vakis Papaparaskeva - Sunnyvale CA, US
Christian Olgaard - Sunnyvale CA, US
Roman Schilter - Sunnyvale CA, US

Assignee:

LITEPOINT CORPORATION - Sunnyvale CA

International Classification:

G11C 16/04

US Classification:

365185030

Abstract:

Apparatus and method for testing signals from two or more OFDM transmitters simultaneously with a single VSA.

US Patent:

20130326290, Dec 5, 2013

Filed:

Jun 5, 2012

Appl. No.:

13/488742

Inventors:

Nabil Ayoub ELSEROUGI - SAN JOSE CA, US
Thomas Toldborg ANDERSEN - BRENTWOOD CA, US
Roman SCHILTER - SUNNYVALE CA, US

Assignee:

LITEPOINT CORPORATION - SUNNYVALE CA

International Classification:

H04W 24/10
G06F 11/22

US Classification:

714712, 714E11148

Abstract:

A system and method for the execution of a program comprises a user-defined sequence of standard hardware and analysis module commands of an instrument, in the context of a tester comprising a plurality of VSAs and VSGs, or other hardware measurement modules types, where the coordination of command execution and resource availability is built into the system as an inherent part of its overall architecture. As such, the commands are the same as those ordinarily executed in piecemeal fashion, but are now automatically and sequentially executed in an atomic and deterministic manner through the coordinated interaction of embodiments of the invention.

US Patent:

20130326291, Dec 5, 2013

Filed:

Jun 21, 2013

Appl. No.:

13/923638

Inventors:

Thomas Toldborg ANDERSEN - BRENTWOOD CA, US
Roman SCHILTER - SUNNYVALE CA, US

International Classification:

H04B 17/00

US Classification:

714712

Abstract:

A system and method for the execution of a program comprises a user-defined sequence of standard hardware and analysis module commands of an instrument, in the context of a tester comprising a plurality of VSAs and VSGs, or other hardware measurement modules types, where the coordination of command execution and resource availability is built into the system as an inherent part of its overall architecture. As such, the commands are the same as those ordinarily executed in piecemeal fashion, but are now automatically and sequentially executed in an atomic and deterministic manner through the coordinated interaction of embodiments of the invention.

US Patent:

20160050569, Feb 18, 2016

Filed:

Jul 9, 2015

Appl. No.:

14/795390

Inventors:

- Sunnyvale CA, US
Roman Schilter - Sunnyvale CA, US
Guang Shi - San Jose CA, US

International Classification:

H04W 24/02
H04L 29/06
H04B 7/04

Abstract:

Method for testing implicit beamforming performance of a multiple-input multiple-output (MIMO) radio frequency (RF) data packet signal transceiver device under test (DUT). The data packet signals forming the sequential data packet signal transmissions used for beamforming are produced with a selectively varied phase difference and conveyed via internal RF signal paths to external transmit terminals. Combining these transmitted data packet signals produces a combined data packet signal in which a peak power occurs during which a particular phase difference is being induced between the sequential DUT data packet signal transmissions used for the beamforming. This phase difference corresponds to the difference in RF signal phase lengths between the internal RF signal paths of the DUT, and is thereby indicative of the amount of phase shift needed between the sequential DUT data packet signal transmissions used for the beamforming to enable optimal implicit beamforming performance.