Point Somee Limited Liability Company

Chemtron Research LLC

Axbio Inc.

Stephen F Dreyer

Anatoly Shteynberg

Dongsheng Zhou

Harlan Ohara

Sinan Doluca

Hui Tian

Harry Rodriguez

Bradley M Lehman

Thomas J Riordan

Mark Eason

Priyanka Agrawal

Igor C Ivanov

Albert Chueh

Diagnostic systems for sensing biological molecules are disclosed. The diagnostic systems include a fluid control delivery and control system that can be coupled to a diagnostic cartridge that includes a microfluidic device and integrated sensing electronics. The diagnostic systems can be used to sequence biological molecules.

Biomolecule diagnostic systems

Integrated circuits for sensing biological molecules are disclosed. The integrated circuits can be used to measure the impedance of a biological sample under test. The integrated circuits can be used to sequence polynucleotides using a cell array.

Integrated circuits for analyzing biological systems

An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes ('LEDs'). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.

Apparatus, method and system for providing AC line power to lighting devices

Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes ('LEDs'). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current level through an overall series LED current path, and to provide for first or second segments of LEDs to be in or out of the overall series LED current path at different current levels. The controller is configured to, in a first light emitting diode configuration, cause first and second segments of LEDs to be parallel to one another and in the overall series LED current path. The controller is further configured to, in a second light emitting diode configuration, cause first and second segments of light emitting diodes to be coupled in series and in the overall series light emitting diode current path.

Apparatus and method for providing AC line power to lighting devices

An apparatus, method, and system are disclosed for providing AC line power to lighting devices such as light emitting diodes ('LEDs'). A representative apparatus comprises: a plurality of LEDs coupled in series to form a first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a current sensor; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, generates a second control signal to switch the corresponding segment of LEDs out of the first series LED current path.

An apparatus, method, and system are disclosed for providing AC line power to lighting devices such as light emitting diodes ('LEDs'). A representative apparatus comprises: a plurality of LEDs coupled in series to form a first plurality of segments of LEDs coupled in series; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a memory; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, determines and stores in the memory a value of a second parameter and generates a first control signal to switch a corresponding segment of LEDs into the series LED current path, and during a second part of the AC voltage interval, when a current value of the second parameter is substantially equal to the stored value, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.

Growing community of inventors

Santa Clara, CA, United States of America

Stephen F Dreyer