Eugene L Shoykhet

US Patent:

20080057888, Mar 6, 2008

Filed:

Jan 24, 2007

Appl. No.:

11/626686

Inventors:

Eugene L. Shoykhet - Olathe KS, US
Jason D. Bridges - Lenexa KS, US

Assignee:

Garmin Ltd. - George Town

International Classification:

H04B 1/18
H04Q 7/20

US Classification:

4551611, 455434, 455515

Abstract:

A portable electronic device includes a radio frequency receiver; a radio frequency transmitter; and a processing system coupled with the receiver and transmitter. The processing system directs the receiver to scan a radio frequency spectrum for available radio channels over which the transmitter may transmit. The processing system may further direct the receiver to perform a second scan for radio channels which are actively transmitting information. The processing system then selects an available radio channel as the radio channel best suited for use by the transmitter to transmit information to the external audio system. The processing system may select a transmission frequency which is spectrally distant from the active radio channels and/or may take into account a transmission profile of the transmitter to select a frequency that does not interfere with the reception of incoming radio signals.

US Patent:

20130076646, Mar 28, 2013

Filed:

Sep 23, 2011

Appl. No.:

13/243925

Inventors:

Christoph Horst KRAH - Los Altos CA, US
Eugene Lvovich Shoykhet - Cupertino CA, US
Martin Paul Grunthaner - Mountain View CA, US

International Classification:

G06F 3/041

US Classification:

345173

Abstract:

A force sensor interface in a touch controller of a touch sensitive device is disclosed. The force sensor interface can couple to touch circuitry to integrate one or more force sensors with touch sensors of the device. The force sensor interface can include one portion to transmit stimulation signals generated by the touch circuitry to the force sensors to drive the sensors. The interface can also include another portion to receive force signals, indicative of a force applied to the device, from the force sensors for processing by the touch circuitry. The device can use the touch circuitry to concurrently and seamlessly operate both the force sensors and the touch sensors.

US Patent:

20130335057, Dec 19, 2013

Filed:

Sep 27, 2012

Appl. No.:

13/629276

Inventors:

Yehonatan Perez - Menlo Park CA, US
Stephen J. Hrinya - San Jose CA, US
Eugene L. Shoykhet - San Jose CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G05F 3/02
H02H 7/20

US Classification:

323315, 361 84

Abstract:

A host electronic device may be coupled to an accessory electronic device. During normal operation, the host device may supply the accessory device with power over a power supply line. Back-powering events in which the accessory device delivers power to the host device may be prevented by interposing a protection transistor in the power supply line. A current mirror may be formed using the protection transistor and an additional transistor that produces a sense current proportional to the amount of current that is flowing through the power supply line. A current-to-voltage amplifier may produce a sense voltage that is proportional to the sense current. A bias circuit may be used to bias the sense current through the current mirror. A control circuit may compare the sense voltage to one or more reference voltages and turn off the protection transistor when appropriate to prevent back-powering of the host device.

US Patent:

20180219389, Aug 2, 2018

Filed:

Jan 27, 2017

Appl. No.:

15/417532

Inventors:

- Redmond WA, US
David Paul Wunsch Desrosiers - Los Gatos CA, US
Eugene Lvovich Shoykhet - San Jose CA, US
David Simon Lukofsky - San Francisco, CA
Agustya Ruchir Mehta - Mountain View CA, US
Junius Mark Penny - Ben Lomond CA, US

International Classification:

H02J 7/00
G01R 19/10
G01R 19/165
G01R 31/36
G06F 1/26

Abstract:

The uneven charge and discharge from non-collocated batteries within an HMD can be solved by monitoring the DC current on the paths coupled to the first battery and the second battery and making an adjustment in the path resistance to equalize, or at least reduce, the difference between the currents on the two paths. Aspects of the technology described herein monitor current on paths from two or more non-collocated batteries. When the currents are different, resistance is dynamically added to the path with the higher current to equalize the current in the two paths. The monitoring and resistance adjustment can occur during discharge from a battery to a load and during battery recharge.

US Patent:

20170317490, Nov 2, 2017

Filed:

May 2, 2016

Appl. No.:

15/144088

Inventors:

Junius Penny - Ben Lomond CA, US
Agustya Mehta - Mountain View CA, US
David Lukofsky - San Francisco CA, US
Eugene Shoykhet - San Jose CA, US

International Classification:

H02H 11/00
G02B 27/01
H02J 7/00
G02B 27/01

Abstract:

An electronic device is configured with sub-assemblies including a main logic board, flexible printed circuit, and dual battery packs that are assembled together with electrical connectors to enable power from the battery packs to flow over a power bus that is distributed along the flexible printed circuit and main logic board. A protection circuit module (PCM) in each battery pack is configured to determine a state of each of the connections among the sub-assemblies (i.e., whether or not properly assembled to provide electrical continuity through the connector) so that power from the battery packs is switched on to the power bus only when electrical continuity is verified at each of the connectors. In the event that any connection is faulty, for example due to a misalignment of a connector during assembly that prevents electrical continuity to be established through a connector, neither PCM will switch power on to the power bus.

US Patent:

20170302064, Oct 19, 2017

Filed:

Apr 13, 2016

Appl. No.:

15/097872

Inventors:

Julian Binder - Sunnyvale CA, US
Daniel Chian - Los Altos CA, US
Eugene Shoykhet - San Jose CA, US
Ruchi Parikh - Sunnyvale CA, US

International Classification:

H02H 3/10
H02H 7/18
H02H 5/04

Abstract:

An enhanced parallel protection circuit is provided. A system using separate battery packs in a parallel configuration is arranged with multiple protection circuit modules (PCMs). The PCMs are configured to detect fault conditions, such as over voltage, under voltage, excess current, etc. The PCMs can be configured to control associated switches and/or other components. When a fault condition is detected by an individual PCM, the individual PCM transitions to a fault state, and the PCM triggers an output causing one or more actions, e.g., causing a device to shut down or isolate one or more components. In addition, by the use of the techniques disclosed herein, the individual PCM can generate a control signal that causes other PCMs to transition to a fault state. The individual PCM can also receive a control signal from another PCM to cause the individual PCM to transition to a fault state.

US Patent:

20160320788, Nov 3, 2016

Filed:

Apr 29, 2016

Appl. No.:

15/143321

Inventors:

- Cupertino CA, US
Yehonatan Perez - Menlo Park CA, US
Stephen J. Hrinya - San Jose CA, US
Eugene L. Shoykhet - San Jose CA, US

International Classification:

G05F 3/02
H02H 9/02
H04W 88/02

Abstract:

A host electronic device may be coupled to an accessory electronic device. During normal operation, the host device may supply the accessory device with power over a power supply line. Back-powering events in which the accessory device delivers power to the host device may be prevented by interposing a protection transistor in the power supply line. A current mirror may be formed using the protection transistor and an additional transistor that produces a sense current proportional to the amount of current that is flowing through the power supply line. A current-to-voltage amplifier may produce a sense voltage that is proportional to the sense current. A bias circuit may be used to bias the sense current through the current mirror. A control circuit may compare the sense voltage to one or more reference voltages and turn off the protection transistor when appropriate to prevent back-powering of the host device.