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Jenne, CA

Fredrick Jenne, Sunnyvale, CA US

Patent application numberDescriptionPublished
20080290386Floating gate memory device with increased coupling coefficient - Methods and apparatus for increasing the coupling coefficient of a floating gate memory device includes an MOS capacitors with self-aligning gate structures that provide increased capacitance per unit area over conventional MOS capacitors.11-27-2008
20080298132Sense transistor protection for memory programming - A method and apparatus for protecting a sense transistor in a sense amplifier during memory programming and erase operations, and for increasing the coupling efficiency of the memory device during the programming and erase operations.12-04-2008
20090080260Programmable CSONOS logic element - A complementary SONOS-type (CSONOS) logic device is programmed and erased with a common voltage. The CSONOS device retains data integrity over extended read endurance cycles.03-26-2009
20090179253Oxide-nitride-oxide stack having multiple oxynitride layers - A semiconductor device including an oxide-nitride-oxide (ONO) structure having a multi-layer charge storing layer and methods of forming the same are provided. Generally, the method involves: (i) forming a first oxide layer of the ONO structure; (ii) forming a multi-layer charge storing layer comprising nitride on a surface of the first oxide layer; and (iii) forming a second oxide layer of the ONO structure on a surface of the multi-layer charge storing layer. Preferably, the charge storing layer comprises at least two silicon oxynitride layers having differing stoichiometric compositions of Oxygen, Nitrogen and/or Silicon. More preferably, the ONO structure is part of a silicon-oxide-nitride-oxide-silicon (SONOS) structure and the semiconductor device is a SONOS memory transistor. Other embodiments are also disclosed.07-16-2009
20100074028Memory Architecture Having Two Independently Controlled Voltage Pumps - In embodiments described herein, a memory architecture has an array of non-volatile memory cells and a pair of independently controlled voltage pumps. The pair of voltage pumps is coupled for supplying both positive and negative voltage biases to the memory array during program and erase operations, such that a sum of the magnitudes of the positive and negative voltage biases is applied across a storage node of an accessed memory cell.03-25-2010

Patent applications by Fredrick Jenne, Sunnyvale, CA US

Fredrick Jenne, Los Gatos, CA US

Patent application numberDescriptionPublished
20110248332Oxide-Nitride-Oxide Stack Having Multiple Oxynitride Layers - A semiconductor device including a silicon-oxide-oxynitride-oxide-silicon structure and methods of forming the same are provided. Generally, the structure comprises: a tunnel oxide layer on a surface of a substrate including silicon; a multi-layer charge storing layer including an oxygen-rich, first oxynitride layer on the tunnel oxide layer in which the stoichiometric composition of the first oxynitride layer results in it being substantially trap free, and an oxygen-lean, second oxynitride layer on the first oxynitride layer in which the stoichiometric composition of the second oxynitride layer results in it being trap dense; a blocking oxide layer on the second oxynitride layer; and a silicon containing gate layer on the blocking oxide layer. Other embodiments are also disclosed.10-13-2011

Nathan Stanley Jenne, Roseville, CA US

Patent application numberDescriptionPublished
20110107394AUTHENTICATION METHODS AND DEVICES - Embodiments of the device have a plurality of authentication slots for authenticating users, a port configured to receive an authentication request from a user, a memory, a queue maintained in the memory, and a processing engine configured to monitor the port and the authentication slots such that if an authentication request from a user is received and no authentication slots are available, an identifier associated with the user is enqueued on the queue, and wherein if one of the authentication slots is or becomes available and the queue is not empty, an identifier is dequeued from the queue and the associated user is authenticated using one of the available authentication slots.05-05-2011

Nathan Stanley Jenne, Lincoln, CA US

Patent application numberDescriptionPublished
20110243032Method For Energy Efficient Configuration Of Ports Of A Logical Communication Channel - A method for energy efficient configuration of a physical port of a plurality of physical ports of a network device is described herein. One or more physical ports of the plurality of physical ports may be aggregated to a logical port in a logical communication channel between the network device and another device. A configuration of the one or more physical ports is determined. The configuration includes one or more parameters which are monitored. The physical port of the plurality of physical ports is selected and a configuration state of the selected physical port is modified upon detection of an event based on the one or more parameters. The modified configuration state is one of an active port state, an active port state with a limited bandwidth utilization rate, and a standby port state. The selected port is reconfigured according to the modified configuration state.10-06-2011

Stephan Jenne, Foster City, CA US

Patent application numberDescriptionPublished
20100055751KETOREDUCTASE POLYPEPTIDES AND USES THEREOF - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme including the capability of stereo specifically reducing (R)-2-methylpentanal to (R)-2-methylpentanol. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to produce (R)-2-methylpentanol and related compounds.03-04-2010

Stephane J. Jenne, Foster City, CA US

Patent application numberDescriptionPublished
20080248539COMPOSITIONS AND METHODS FOR PRODUCING STEREOISOMERICALLY PURE STATINS AND SYNTHETIC INTERMEDIATES THEREFOR - The present disclosure provides ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, method of using the engineered ketoreductase enzymes to synthesize a variety of chirally pure compounds, and the chirally pure compounds prepared therewith.10-09-2008
20090093031Ketoreductase Polypeptides for the Production of (R)-3-Hydroxythiolane - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize chiral compounds.04-09-2009
20090191605Ketoreductase Polypeptides for the Reduction of Acetophenones - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds.07-30-2009
20100028972KETOREDUCTASE POLYPEPTIDES AND RELATED POLYNUCLEOTIDES - The present invention is directed to variant polypeptides having enhanced ketoreductase activity and/or thermostability for use in the stereospecific reduction of ketones. In addition, the present invention is directed to polynucleotides that encode the ketoreductase polypeptides, including codon optimized versions of the polynucleotides which provide for enhanced expression in host cells. In another aspect, the present invention is directed to nucleotide constructs, vectors and host cells that are transformed with polynucleotides of the present invention.02-04-2010
20100304459GLUCOSE DEHYDROGENASE POLYPEPTIDES AND RELATED POLYNUCLEOTIDES - The present invention is directed to glucose dehydrogenase (GDH) polypeptides that have enhanced GDH activity and/or thermostability relative to the backbone wild-type glucose dehydrogenase polypeptide. In addition, the present invention is directed to a polynucleotide that encodes for the GDH polypeptides of the present invention, to nucleic acid sequences comprising the polynucleotides, to expression vectors comprising the polynucleotides operatively linked to a promoter, to host cells transformed to express the GDH polypeptides, and to a method for producing the GDH polypeptides of the present invention.12-02-2010
20110195465Compositions and Methods for Producing Stereoisomerically Pure Statins and Synthetic Intermediates Therefor - The present disclosure provides ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, method of using the engineered ketoreductase enzymes to synthesize a variety of chirally pure compounds, and the chirally pure compounds prepared therewith.08-11-2011
20110217754KETOREDUCTASE POLYPEPTIDES FOR THE PRODUCTION OF (R)-3-HYDROXYTHIOLANE - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize chiral compounds.09-08-2011

Patent applications by Stephane J. Jenne, Foster City, CA US