Casey L Hardy, 4450 Glendale St UNIT 206, San Francisco, CA 94114

2013010, May 2, 2013

Nov 1, 2011

13/286439

Dustin J. Verhoeve - San Francisco CA, US
Saket R. Vora - San Francisco CA, US
Erturk D. Kocalar - Sunnyvale CA, US
Casey Hardy - San Francisco CA, US
Brian J. Conner - San Jose CA, US
Adriane S. Niehaus - San Jose CA, US

H04R 29/00
G01R 31/3187

381 58, 3247503, 714727, 714E11001

Electronic devices may be provided with audio circuits and circuitry configured to support communications and test mode operations. During normal operation, a connector such as an audio connector may be inserted into a connector port in an electronic device. The audio connector may be associated with a headset or other accessory and may be used to carry audio signals. During test mode operations, a tester may be coupled to the connector port using an audio connector. The tester may generate voltages, resistances, time-varying signals, or other input that directs the device to configure switching circuitry to support testing. Monitoring circuitry in the device may be used to detect input from the tester. In response to detected input from the tester, the switching circuitry may be adjusted to couple a control circuit that supports test mode operations to the audio connector.

2013010, May 2, 2013

Nov 1, 2011

13/286444

Erturk D. Kocalar - Sunnyvale CA, US
Dustin J. Verhoeve - San Francisco CA, US
Brian J. Conner - San Jose CA, US
Casey Hardy - San Francisco CA, US
Adriane S. Niehaus - San Jose CA, US
Saket R. Vora - San Francisco CA, US

H04R 29/00
G01R 31/3187

381 58, 3247503

Electronic devices may be provided with audio circuits and circuitry configured to support communications and test mode operations. During normal operation, a standards-compliant connector such as an audio connector may be inserted into a connector port in an electronic device. The audio connector may be associated with a headset or other accessory and may be used to carry audio signals. During test mode operations, a nonstandard test connector may be inserted into the connector port. The electronic device may detect the presence of the nonstandard connector and may direct the electronic device to operate in a testing mode.

2013010, May 2, 2013

Nov 1, 2011

13/286448

Scott Mullins - Morgan Hill CA, US
Alexei Kosut - Mountain View CA, US
Brian J. Conner - San Jose CA, US
Dustin J. Verhoeve - San Francisco CA, US
Saket R. Vora - San Francisco CA, US
Erturk D. Kocalar - Sunnyvale CA, US
Casey Hardy - San Francisco CA, US
Adriane S. Niehaus - San Jose CA, US

H04R 29/00
G01R 31/3187

381 58, 3247503, 714727, 714E11001

Electronic devices may be provided with audio circuits and controller circuitry configured to support test mode operations. A connector such as a reversible connector may be inserted into a mating device connector in an electronic device. The reversible connector may be connected to the device connector in either a normal orientation or a reversed orientation in which the reversible connector is rotated 180 with respect to the normal orientation. During test mode operations, a tester may be coupled to the device connector using the reversible connector. The tester may generate voltages, resistances, time-varying signals, or other input that directs the device to configure switching circuitry to support testing. Monitoring circuitry in the device may be used to detect input from the tester. In response to detected input from the tester, the switching circuitry may be adjusted to couple the controller to the device connector.

2012008, Apr 5, 2012

Sep 30, 2010

12/894587

Zheng Gao - San Jose CA, US
Nathan Johanningsmier - Cupertino CA, US
Casey Hardy - Cupertino CA, US
Eric Monsef - Los Gatos CA, US
Chiachi Wu - Taipei, TW

Apple Inc. - Cupertino CA

G01R 19/00

324 7611

Circuits, methods, and apparatus that provide an audio receptacle that can detect the presence of an audio jack without using mechanical switches or other such mechanical mechanisms. One example provides an audio receptacle having two contacts that may be electrically connected when an audio jack is inserted. When no audio jack is inserted into the audio receptacle, the two ground contacts may not be connected. When an audio jack is inserted into the audio receptacle, the resulting closed circuit may be detected and used to activate or otherwise turn on one or more audio circuits in or associated with the audio receptacle. Conversely, when no audio jack is inserted, the resulting open circuit may be detected and used to deactivate or otherwise turn off or reduce power in one or more audio circuits in or associated with the audio receptacle.

2020041, Dec 31, 2020

Jul 13, 2020

16/926974

- Santa Clara CA, US
Stephen Victor Kosonocky - Ft. Collins CO, US
Casey Lee Hardy - Boulder CO, US

G11C 5/14

Systems, apparatuses, and methods for dynamically generating a memory bitcell supply voltage rail from a logic supply voltage rail are disclosed. A circuit includes at least one or more comparators, control logic, and power stage circuitry. The circuit receives a logic supply voltage rail and compares the logic supply voltage rail to threshold voltage(s) using the comparator(s). Comparison signal(s) from the comparator(s) are coupled to the control logic. The control logic generates mode control signals based on the comparison signal(s) and based on a programmable dynamic range that is desired for a memory bitcell supply voltage rail. The mode control signals are provided to the power stage circuitry which generates the memory bitcell supply voltage rail from the logic supply voltage rail. A voltage level of the memory bitcell supply voltage rail can be above, below, or the same as the logic supply voltage rail.

2015020, Jul 16, 2015

Jan 13, 2014

14/153984

- CUPERTINO CA, US
JOSEPH J. CURCIO - SAN JOSE CA, US
NATHAN A. JOHANNINGSMEIER - SAN JOSE CA, US
CASEY L. HARDY - SAN FRANCISCO CA, US

APPLE INC. - CUPERTINO CA

H03G 3/00
H03G 3/20

A power converter has an output that is coupled in parallel with an energy reservoir circuit and a power supply node of an audio power amplifier. The converter can set an upper limit on its input supply current that is variable in accordance with a control input. A controller is to produce a signal, coupled to the control input of the power converter, that is responsive to a measure of input supply voltage of the power converter and either output voltage of the power converter or output power of the amplifier. Other embodiments are also described and claimed.

2014020, Jul 24, 2014

Jan 22, 2013

13/747205

- Cupertino CA, US
Nathan A. Johanningsmeier - San Jose CA, US
Casey L. Hardy - San Francisco CA, US

Apple Inc. - Cupertino CA

G06F 13/38

710105

An audio system bus has a bus data line and a bus clock line. Audio producers are coupled to the bus to form a time-division multiplexed multi drop bus interface arrangement having protocol slots 0,1, . . . N where N is an integer greater than two. A bus device is coupled to the bus that produces a) a frame marker on the bus data line in slot 0, and b) a data bit on the bus data line in slot 1. The audio producers are to produce their respective audio data bits in their assigned slots other than slots 0 and 1. Other embodiments are also described and claimed.