1
John R Martin, Carl M Roberts Jr: Package for sealing an integrated circuit die. Analog Devices, Hale and Dorr, November 27, 2001: US06323550 (245 worldwide citation)

A die has a part that is sealed with a cap. The seal can be hermetic or non-hermetic. If hermetic, a layer of glass or metal is formed in the surface of the die, and the cap has a layer of glass or metal at a peripheral area so that, when heated, the layers form a hermetic seal. A non-hermetic seal ...


2
Geoffrey T Haigh, Baoxing Chen: Non-optical signal isolator. Analog Devices, Iandiorio & Teska, March 29, 2005: US06873065 (179 worldwide citation)

A non-optical isolator having a driver circuit for providing an input signal to one or more first passive components which are coupled across a galvanic isolation barrier to one or more corresponding second passive components, and an output circuit that converts the signal from the second passive co ...


3
Paul W Hollis, George M Lattimore, Matthew B Rutledge: Memory access system and method using de-coupled read and write circuits. Analog Devices, Iandiorio Teska & Coleman, December 16, 2008: US07466607 (168 worldwide citation)

A de-coupled memory access system including a memory access control circuit is configured to generate first and second independent, de-coupled time references. The memory access control circuit includes a read initiate circuit responsive to the first time reference and a read signal for generating a ...


4
Philip R Cooke, Richard Redl: Switching voltage regulator with dual modulation control scheme. Analog Devices, Koppel & Jacobs, April 2, 2002: US06366070 (168 worldwide citation)

A switching voltage regulator employs a “dual modulation” scheme to control the regulator's switching components. A control circuit indirectly monitors load current. When the load decreases, the control circuit reduces both the duty ratio and the frequency of the control signals which operate t ...


5
Geoffrey T Haigh: Logic isolator with high transient immunity. Analog Devices, Hale and Dorr, September 14, 1999: US05952849 (141 worldwide citation)

A logic isolation circuit with high transient immunity has a link-coupled transformer assembly for providing isolation. An input circuit provides pulses that indicate rising and falling edges, and an output circuit on the isolated side of the barrier converts the signal with pulses back into a digit ...


6
A Paul Brokaw: Integrated circuit monitor for storage battery voltage and temperature. Analog Devices, Wolf Greenfield & Sacks, August 16, 1994: US05339018 (138 worldwide citation)

An apparatus for monitoring voltage as a function of temperature of a storage battery and an apparatus for controlling the charging voltage of the battery based on battery temperature, voltage, and charging system loads. The battery monitoring apparatus includes a comparator for comparing, at any te ...


7
Geoffrey T Haigh, Baoxing Chen: Isolator for transmitting logic signals across an isolation barrier. Analog Devices, Hale & Dorr, July 17, 2001: US06262600 (126 worldwide citation)

A logic isolation circuit has a transmitter circuit for receiving a logic input signal and providing a periodic signal to an isolation barrier, and a receiving circuit for receiving the periodic signal from the isolation barrier and for providing an output signal that indicates the transitions in th ...


8
Baoxing Chen, Geoffrey Haigh: Signal isolators using micro-transformers. Analog Devices, Iandiorio & Teska, July 11, 2006: US07075329 (123 worldwide citation)

A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a signal of a first predetermined type ...


9
Steven J Sherman, A Paul Brokaw, Robert W K Tsang, Theresa Core: Monolithic accelerometer. Analog Devices, Wolf Greenfield & Sacks, September 13, 1994: US05345824 (118 worldwide citation)

An accelerometer comprising a microfabricated acceleration sensor and monolithically fabricated signal conditioning circuitry. The sensor comprises a differential capacitor arrangement formed by a pair of capacitors. Each capacitor has two electrodes, one of which it shares electrically in common wi ...


10
John A Geen: Coupling for multiple masses in a micromachined device. Analog Devices, Hale & Dorr, June 3, 1997: US05635638 (112 worldwide citation)

A micromachined device has two suspended masses positioned near each other, each of the masses being dithered along a dither axis. Two couplings, each including an arcuate member and an anchored support beam, are provided between the masses to allow relative anti-phase movement and to resist relativ ...



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