Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Stewart; Roger Green
Address:
Morgan Hill, CA
No. of patents:
26
Patents:












Patent Number Title Of Patent Date Issued
8576078 Poker chips and methods of reading the same November 5, 2013
A method for reading poker chips according to one embodiment includes sending out an interrogation signal; receiving responses from poker chips in response to the interrogation signal, each of the poker chips comprising a circuit and an antenna coupled to the circuit, wherein the ant
8249251 Security system and method August 21, 2012
A device for generating a seedless pseudo-random number, according to one embodiment, includes a first register containing a secret code; a second register containing a first random number generated locally and a second random number generated at a remote device; and an exclusive OR (XOR
7818572 Security system and method October 19, 2010
A first embodiment provides a process and system for simple, secure exchange of random numbers between two devices by combining a random number and a secret code (e.g., password) to generate a first challenge code, extracting the random number using the password at the second device,
7728713 Accurate persistent nodes June 1, 2010
A timing circuit that can function as an accurate persistent node in an RFID tag includes a power capture circuit for capturing power from a power source, and a counter circuit that provides a count representing a progression of time. The count can then be compared to a reference value
7714726 Semi-transparent RFID tags May 11, 2010
A "semi-transparent" antenna and Radio Frequency (RF) device implementing the same. The semi-transparent antenna gathers some of the RF energy in a carrier signal, but most of the energy in the RF wave does not couple into the antenna. Accordingly, because the antenna minimally affects t
7683789 Compact omni-directional RF system March 23, 2010
A radio frequency circuit for summing signals from multiple lobes of an antenna includes circuitry for converting RF signals from lobes of an antenna to baseband signals, and circuitry for summing the baseband signals from the lobes of an antenna.
7646300 Master tags January 12, 2010
A method for creating a hierarchy of radio frequency identification (RFID) tags and the resultant system include associating each of a plurality of first RFID tags with an individual object of a plurality of objects, each first RFID tag storing identification information about the object
7643951 Battery monitor January 5, 2010
A circuit tracks the total amount of time that a host device has spent in its high power "activated" state (and optionally idle and hibernate states) and thereby can estimate the total power consumed by the host device. A remote device can query the state of a counter storing a value
7612652 Battery activation circuit November 3, 2009
A system and method for selectively activating a device based on an activate command. A circuit, in low power mode, listens for an activate command. The activate command includes a preamplifer centering sequence, an interrupt signal, and an activate code. The circuit receives a signal
7604178 Smart tag activation October 20, 2009
Systems and methods for activating devices such as RFID tags includes activating a device if an activate command matches a value stored on the device. The activate command can also define which mode of operation or state the device will initiation in, and whether an additional function
7593822 Battery monitor September 22, 2009
Circuit and methods for tracking the total amount of time that a host device has spent in its high power "activated" state (and optionally idle and hibernate states) and thereby can estimate the total power consumed by the host device. A value representing this time may be send to a
7559131 Method of making a radio frequency identification (RFID) tag July 14, 2009
Methods of making a radio frequency identification (RFID) tag. A flexible strap is provided by disposing a plurality of RFID chips on a first web of flexible material and removing the flexible strap from the first web and attaching the flexible strap to an antenna on a flexible substrate
7539030 Attribute cache memory May 26, 2009
A memory system according to one embodiment includes a plurality of content addressable word decoders, and memory cells associated with each of the word decoders. A memory system according to another embodiment includes a word decoder storing an identifier which is a subset of a memo
7417306 Apparatuses and methods for forming electronic assemblies August 26, 2008
Apparatuses and methods for forming microelectronic assemblies are claimed. One embodiment of the invention includes a contact smart card wherein fluidic self assembly is used to build the microelectronic structures on the microelectronic assembly such that a contact smart data is tr
7260882 Methods for making electronic devices with small functional elements supported on a carriers August 28, 2007
Methods for making electronic devices with small functional elements supported on a carrier are presented. One method of making an electronic assembly is by first providing the following: a web of flexible material having a plurality of recesses, where each of the recesses containing an
7172910 Web fabrication of devices February 6, 2007
Apparatuses and methods for forming displays are claimed. One embodiment of the invention relates to forming an assembly using different sized blocks in either a flexible or rigid substrate.
6985361 Electronic devices with small functional elements supported on a carrier January 10, 2006
Methods and apparatuses for an electronic assembly. The electronic assembly has a first object created and separated from a host substrate. The first object has a first electrical circuitry therein. A carrier substrate is coupled to the first object wherein the first object is being
6980184 Display devices and integrated circuits December 27, 2005
Integrated circuits, assemblies with integrated circuits, display devices and electrical circuits. There are various different aspects and embodiments of these apparatuses described herein. According to one aspect, a display device includes a plurality of display drivers which includ
6927085 Web fabrication of devices August 9, 2005
Apparatuses and methods for forming displays are claimed. One embodiment of the invention relates to forming an assembly using different sized blocks in either a flexible or rigid substrate.
6863219 Apparatuses and methods for forming electronic assemblies March 8, 2005
Apparatuses and methods for forming displays are claimed. One embodiment of the invention includes a contact smart card wherein fluidic self assembly is used to build the microelectronic structures on the display such that a contact smart data is transmitted unidirectionally. A contact s
6825836 Bus arrangement for a driver of a matrix display November 30, 2004
A demultiplexer applies picture information to pixels arranged in an array of a display device having columns and rows. The demultiplexer includes transistor switches each having a control terminal, an input terminal and an output terminal. A first bus couples switch control signals to t
6816380 Electronic devices with small functional elements supported on a carrier November 9, 2004
Methods and apparatuses for an electronic assembly. The electronic assembly has a first object created and separated from a host substrate. The first object has a first electrical circuitry therein. A carrier substrate is coupled to the first object wherein the first object is being rece
6683663 Web fabrication of devices January 27, 2004
Apparatuses and methods for forming displays are claimed. One embodiment of the invention relates to forming an assembly using different sized blocks in either a flexible or rigid substrate.
6606247 Multi-feature-size electronic structures August 12, 2003
Methods and apparatuses for an electronic assembly. The electronic assembly has a first object created and separated from a host substrate. The first object has a first electrical circuitry therein. A carrier substrate is coupled to the first object wherein the first object is being rece
6414661 Method and apparatus for calibrating display devices and automatically compensating for loss in July 2, 2002
A method and associated system that compensates for long-term variations in the light-emitting efficiency of individual organic light emitting diodes (OLEDs) in an OLED display device, calculates and predicts the decay in light output efficiency of each pixel based on the accumulated dri
6307322 Thin-film transistor circuitry with reduced sensitivity to variance in transistor threshold volt October 23, 2001
A circuit design technique polysilicon thin-film transistor (TFT) circuitry produces circuits that are relatively less sensitive to threshold variations among the TFT's than circuits designed using conventional techniques. The circuit is designed such that thin-film transistors that










 
 
  Recently Added Patents
Debugging mechanism having an OR circuit for triggering storage of arithmetic operation data whenever a valid control signal is received or a clock-based counter overflows
Clock generators and clock generation methods thereof
Corrected value calculation method and printing device
Laser-marked multi-component assemblies, kits, and related methods
Display apparatus and control method of the same
Interior rearview mirror assembly with integrated indicator symbol
Radiating device for lamp and LED lamp
  Randomly Featured Patents
Method of and an apparatus for in situ ultrasonic rail inspection of a railroad rail
Viscosity damper
Shorting ring fixture for electromagnetic transducer
Method of offering wall-thickness thinning prediction information, and computer-readable recording medium storing wall-thickness thinning prediction program, and method of planning piping work
Chrysanthemum plant named `PPP MABEL 09`
Device for separating dust particles
Thermal printer and improved platen
Belt speed reducing apparatus for electric power steering apparatus and electric power steering apparatus
Nasal tract model
Shadow queue for callers in a performance/pattern matching based call routing system