Brian R Land, 56440 Summit Springs Rd, Redwood City, CA 94062

7673510, Mar 9, 2010

Mar 11, 2005

10/591333

Steven Porter Hotelling - San Jose CA, US
Lex Bayer - Palo Alto CA, US
Brian R. Land - Redwood City CA, US

Thomson Licensing - Boulogne, Billancourt

G01P 9/04

7350412

A dual-axis rotational rate sensor having two vibratory masses coupled to a restoring element and driven in a resonant counter-phase motion, wherein the two masses vibrate with equal but opposite amplitudes along a single axis. The vibratory structure also accommodates motion of the masses in a plane orthogonal to the vibratory axis. Measurement of the motion of the masses in two axes in this plane provides signals directly responsive to rotation of the sensor about two orthogonal axes. Measurement and drive is facilitated by the use of magnetic masses and electromagnetic drive and sense transducers.

7692638, Apr 6, 2010

Jan 3, 2007

11/650204

Brian Richards Land - Redwood City CA, US
Steve Porter Hotelling - San Jose CA, US

Apple Inc. - Cupertino CA

G09G 5/00

345173, 345174, 345178, 178 1801, 341120

Normalization of the built-in DC offset error in each analog channel is disclosed to reduce image distortion in multi-event (multi-touch or multi-hover) sensor panels. By eliminating the component-dependent offset error from each analog channel, each analog channel will generate approximately the same output value for a given dynamic input signal. Normalization can include “phantom row” compensation, which involves measuring the static output value of each analog channel when no stimulus is applied to any row of a multi-event sensor panel, and subtracting this value out of any subsequent output value generated by the analog channel. Normalization can also include DAC offset compensation, which involves setting the offset compensation voltage of each analog channel to some fraction of its normal value, measuring the output of the analog channel over temperature, determining a temperature coefficient, and adjusting any subsequent output value generated by the analog channel to account for this drift.

7856878, Dec 28, 2010

Mar 11, 2005

10/591221

Steven Porter Hotelling - San Jose CA, US
Lex Bayer - Palo Alto CA, US
Brian R. Land - Redwood City CA, US

Thomson Licensing - Boulogne, Billancourt

G01P 9/04

7350412, 702145

A vibratory rotational rate gyroscope has a suspended assembly isolated from external vibrations by an arrangement of helical springs. This isolated assembly includes both the active components of the rotational rate gyroscope and a digital processing circuit. The digital processing circuit includes digital storage for both externally determined and internally determined unit-specific calibration values. These values provide seed values for startup processes, which improves loop startup time, and values for unit-specific electronic calibration. The digital processing circuit further converts all data to digital form. A digital communications protocol is used to transmit the calibration information and the outgoing data to and from the isolated assembly on only two conductors. Two additional conductors used for power. Four of the helical springs used in the suspension arrangement are used for these conductors such that no additional wiring is required.

7920129, Apr 5, 2011

Jan 3, 2007

11/650182

Steve Porter Hotelling - San Jose CA, US
Brian Richards Land - Redwood City CA, US

Apple Inc. - Cupertino CA

G09G 5/00

345173, 345174, 345179, 178 1801, 178 1809

A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on either side of the substrate. To shield the column (sense) traces from the effects of capacitive coupling from a modulated Vcom layer in an adjacent liquid crystal display (LCD) or any source of capacitive coupling, the row traces can be widened to shield the column traces, and the row traces can be placed closer to the LCD. In particular, the rows can be widened so that there is spacing of about 30 microns between adjacent row traces. In this manner, the row traces can serve the dual functions of driving the touch sensor panel, and also the function of shielding the more sensitive column (sense) traces from the effects of capacitive coupling.

8049732, Nov 1, 2011

Jan 3, 2007

11/650043

Steve Porter Hotelling - San Jose CA, US
Brian Richards Land - Redwood City CA, US

Apple Inc. - Cupertino CA

G09G 5/00

345173, 345178, 345179, 178 1801, 178 1806, 178 1903

A touch surface device having improved sensitivity and dynamic range is disclosed. In one embodiment, the touch surface device includes a touch-sensitive panel having at least one sense node for providing an output signal indicative of a touch or no-touch condition on the panel; a compensation circuit, coupled to the at least one sense node, for generating a compensation signal that when summed with the output signal removes an undesired portion of the output signal so as to generated a compensated output signal; and an amplifier having an inverting input coupled to the output of the compensation circuit and a non-inverting input coupled to a known reference voltage.

8054296, Nov 8, 2011

Jan 3, 2007

11/650037

Brian Richards Land - Redwood City CA, US
Wayne Carl Westerman - San Francisco CA, US
Steve Porter Hotelling - San Jose CA, US

Apple Inc. - Cupertino CA

G09G 5/00

345173, 345178, 178 1801, 178 1806

Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.

8077160, Dec 13, 2011

Sep 24, 2010

12/890274

Brian Richards Land - Redwood City CA, US
Wayne Carl Westerman - Burlingame CA, US
Steve Porter Hotelling - Los Gatos CA, US

Apple Inc. - Cupertino CA

G09G 5/00

345173, 345178, 178 1801, 178 1806, 178 1903

Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.

8125455, Feb 28, 2012

Jan 3, 2007

11/650039

Brian Richards Land - Redwood City CA, US
Steve Porter Hotelling - San Jose CA, US
Richard Wei Kwang Lim - Cupertino CA, US

Apple Inc. - Cupertino CA

G09G 5/00

345173, 345174, 345178, 178 1801, 178 1806

Normalization of regions of a sensor panel capable of detecting multi-touch events, or a sensor panel capable of detecting multi-hover events, is disclosed to enable each sensor in the sensor panel to trigger a virtual button in a similar manner, given the same amount of touch or hover. Each sensor produces an output value proportional to the level or amount of touch or hover. However, due to processing, manufacturing and physical design differences, the sensor output values can vary from region to region or panel to panel for a given amount of touch or hover. To normalize the sensor output values across regions, gain and offset information can be obtained in advance, stored in nonvolatile memory, and later used to normalize the sensor output values so that all regions in the sensor panel can trigger virtual buttons similarly, providing a uniform “response function” at any location on the sensor panel.