TIMOTHY DAVID JOHNSON, P.T.A.
Restorative Service Providers at Country Dr, Fremont, CA
License number
California AT6097
Category
Restorative Service Providers
Type
Physical Therapy Assistant
Address
Address
2
2296 Country Dr, Fremont, CA 94536
5871 Crump Ct, San Jose, CA 95120
5871 Crump Ct, San Jose, CA 95120
Phone
(510) 797-9299
(510) 468-6712
(510) 468-6712
Personal information
See more information about TIMOTHY DAVID JOHNSON at radaris.comName
Address
Phone
1205 Fallen Leaf Ln, Atascadero, CA 93422
5732 Single Spring Dr, Kelseyville, CA 95451
5399 Denver Ln #S339, Sebastopol, CA 95472
4949 Snyder Ln #339, Rohnert Park, CA 94928
28024 Lakeshore Blvd, Lakeport, CA 95453
Professional information
Noise Cancellation For Microphone-Speaker Combinations Using Combined Speaker Amplifier And Reference Sensing
US Patent:
8358788, Jan 22, 2013
Filed:
Aug 4, 2009
Appl. No.:
12/535516
Inventors:
Lawrence F. Heyl - Colchester VT, US
Timothy M. Johnson - San Jose CA, US
Timothy M. Johnson - San Jose CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04B 3/00
US Classification:
381 77, 381123, 381111, 381120, 37938701, 37938805, 330 69
Abstract:
An audio host device has a connector having a speaker contact, a microphone contact, and a reference contact. The reference contact is shared by a microphone and a speaker. The reference contact is also directly coupled to a power return plane of the audio host device. A difference amplifier is provided, having a first cold input, a second cold input, and hot input. The first cold input is coupled to an output of the speaker amplifier, while the second cold input is coupled a sense point for the reference contact. The hot input is coupled to the microphone contact. Other embodiments are also described and claimed.
Methods For Using An Accessory To Communicate With An Electronic Device
US Patent:
2009018, Jul 16, 2009
Filed:
Sep 3, 2008
Appl. No.:
12/203877
Inventors:
Wendell B. Sander - Los Gatos CA, US
Jeffrey Terlizzi - San Francisco CA, US
Douglas M. Farrar - Los Altos CA, US
Timothy Johnson - San Jose CA, US
Brian Sander - San Jose CA, US
Brian J. Conner - San Jose CA, US
Jesse L. Dorogusker - Los Altos CA, US
Jeffrey Terlizzi - San Francisco CA, US
Douglas M. Farrar - Los Altos CA, US
Timothy Johnson - San Jose CA, US
Brian Sander - San Jose CA, US
Brian J. Conner - San Jose CA, US
Jesse L. Dorogusker - Los Altos CA, US
International Classification:
G10K 11/00
US Classification:
367197
Abstract:
Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
Audio I/O Headset Plug And Plug Detection Circuitry
US Patent:
7912501, Mar 22, 2011
Filed:
Jan 5, 2007
Appl. No.:
11/650132
Inventors:
Timothy Johnson - San Jose CA, US
Achim Pantfoerder - Cupertino CA, US
Achim Pantfoerder - Cupertino CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04M 1/00
US Classification:
4555561, 4555752
Abstract:
A single prong, multiple signal conducting plug and plug detection circuitry is provided. The plug may be electrically coupled to a stereo headset including a microphone. The plug may include four signal conducting regions arranged in a predetermined order along the length of the prong. Detection circuitry may be operative to determine whether a microphone type of plug (e. g. , a four region plug including a microphone region and two audio regions, or a three region plug including microphone region and only one audio region) or a non-microphone type of plug (e. g. , stereo plug) is inserted into the jack of an electronic device (e. g. , mobile phone). Detection circuitry may also detect user activated functions performed in response to user activation of one or more switches included with the headset. For example, the headset may include a single switch for performing a function with respect to a microphone (e. g. , end-call function).
Electronic Device Accessory With Ultrasonic Tone Generator
US Patent:
7623667, Nov 24, 2009
Filed:
Sep 3, 2008
Appl. No.:
12/203879
Inventors:
Wendell B. Sander - Los Gatos CA, US
Jeffrey Terlizzi - San Francisco CA, US
Douglas M. Farrar - Los Altos CA, US
Timothy Johnson - San Jose CA, US
Brian Sander - San Jose CA, US
Brian J. Conner - San Jose CA, US
Jesse L. Dorogusker - Los Altos CA, US
Jeffrey Terlizzi - San Francisco CA, US
Douglas M. Farrar - Los Altos CA, US
Timothy Johnson - San Jose CA, US
Brian Sander - San Jose CA, US
Brian J. Conner - San Jose CA, US
Jesse L. Dorogusker - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04R 1/10, G10G 7/02, H04M 1/00
US Classification:
381 74, 84454, 381384, 4555691
Abstract:
Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
Battery Gas Gauge Reset Mechanism
US Patent:
2012027, Nov 1, 2012
Filed:
Jul 9, 2012
Appl. No.:
13/544840
Inventors:
Timothy M. Johnson - San Jose CA, US
Scott Mullins - San Jose CA, US
David John Tupman - San Francisco CA, US
Scott Mullins - San Jose CA, US
David John Tupman - San Francisco CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G01R 31/36, G06F 1/16
US Classification:
36167902, 324426
Abstract:
A gas gauge circuit has a power supply pin, a power return pin, power-on reset capability, and a communications signal pin. A reset control circuit is coupled between the power supply pin and the communications signal pin, or between the power return pin and the communications signal pin. The reset control circuit removes power to the gas gauge circuit in accordance with a control signal asserted on the communications signal pin. Other embodiments are also described and claimed.
Electronic Device Accessory
US Patent:
7869608, Jan 11, 2011
Filed:
Sep 3, 2008
Appl. No.:
12/203876
Inventors:
Wendell B. Sander - Los Gatos CA, US
Jeffrey Terlizzi - San Francisco CA, US
Douglas M. Farrar - Los Altos CA, US
Timothy Johnson - San Jose CA, US
Brian Sander - San Jose CA, US
Brian J. Conner - San Jose CA, US
Jesse L. Dorogusker - Los Altos CA, US
Jeffrey Terlizzi - San Francisco CA, US
Douglas M. Farrar - Los Altos CA, US
Timothy Johnson - San Jose CA, US
Brian Sander - San Jose CA, US
Brian J. Conner - San Jose CA, US
Jesse L. Dorogusker - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04R 3/00
US Classification:
381113, 381111, 367137
Abstract:
Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
Consumer Abuse Detection System And Method
US Patent:
8063765, Nov 22, 2011
Filed:
Aug 18, 2010
Appl. No.:
12/858913
Inventors:
Timothy M. Johnson - San Jose CA, US
Richard H. M. Dinh - Cupertino CA, US
Tang Yew Tan - San Francisco CA, US
Richard H. M. Dinh - Cupertino CA, US
Tang Yew Tan - San Francisco CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G08B 19/00
US Classification:
340521, 307116, 324110
Abstract:
Embodiments disclosed herein provide systems, devices, and methods for detecting the occurrence of consumer abuse events in electronic devices. In one embodiment, a system includes one or more sensors coupled to an abuse detection sub-system for detecting the occurrence of an abuse event, wherein upon detecting an abuse event, a record of the abuse event is stored by the abuse detection sub-system. The system further provides a communication interface configured to provide a first mode of diagnostic communication and a second mode of non-diagnostic communication through a common input/output port. When using a diagnostic device, the diagnostic mode of communication may be enabled, thus allowing the diagnostic device to access consumer abuse event data stored by the abuse detection sub-system.
Digital Signal Filter
US Patent:
8565709, Oct 22, 2013
Filed:
Feb 9, 2011
Appl. No.:
13/023902
Inventors:
Scott P. Mullins - San Jose CA, US
Timothy M. Johnson - San Jose CA, US
Yehonatan Perez - Menlo Park CA, US
Timothy M. Johnson - San Jose CA, US
Yehonatan Perez - Menlo Park CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04B 1/10
US Classification:
455307, 455310
Abstract:
A passive filter circuit filters an input signal to attenuate an undesired frequency. The passive filter circuit includes a first stage and a second stage. The input to the first stage is the input signal. The first stage includes a first inductor and a first branch coupled to the output of the first inductor. The first branch includes a first capacitor and a second inductor. The first stage is coupled to the second stage. The second stage includes a third inductor and a second branch coupled to the output of the third inductor. The second branch includes a second capacitor. Other embodiments are also described and claimed.
Mechanisms For Detecting Tampering Of An Electronic Device
US Patent:
2013008, Apr 4, 2013
Filed:
Aug 31, 2012
Appl. No.:
13/602017
Inventors:
Timothy M. JOHNSON - San Jose CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G01R 1/10
US Classification:
324691
Abstract:
An electronic device has a chassis, and a printed wiring board (PWB) having a hole. A fastener is installed in the hole thereby securing the PWB to the chassis. A pair of conductive traces is formed in the PWB. A cap, being an amount of conductive glue, covers a part of the fastener and fills an electrically insulating gap between the two traces, to thereby form a conductive path that connects the two traces. A sensing circuit is coupled to the traces, to detect a change in impedance of the path and signal a tamper event alert. Other embodiments are also described and claimed.
Detecting Stereo And Mono Headset Devices
US Patent:
8565444, Oct 22, 2013
Filed:
Aug 13, 2008
Appl. No.:
12/190848
Inventors:
Timothy Johnson - San Jose CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04R 1/10, G06F 3/00
US Classification:
381 74, 381 11, 381 12, 381 26, 710 15
Abstract:
The present invention includes apparatuses and methods comprising a means for detecting the presence of speakers and microphones coupled to a portable multi-function device (such as Apple's iPhone™). In response, a portable multi-function device can adapt its output depending on the nature of the coupled headset device. In particular, a portable multi-function device containing the present invention can, upon detecting only one speaker in a coupled headset accessory device, combine the multiple channels of a stereo audio signal into a single mono audio signal. Likewise, a portable multi-function device containing the present invention can alert users to the absence of a coupled microphone.