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		Dallas Semiconductor Patents - Some Patients of Dallas Semiconductor
	#	PAT. NO.		Title
	1	6,745,301		Microcontroller programmable method for accessing external memory in a page mode operation
	2	6,691,219		Method and apparatus for 24-bit memory addressing in microcontrollers
	3	6,587,807		Environmental condition sensor device and method
	4	6,476,716		Temperature-controlled variable resistor
	5	6,476,682		Method for calibrating a temperature sensitive oscillator
	6	6,438,502		Environmental condition sensor device and method
	7	6,414,559		Single package temperature compensated electronic device
	8	6,412,072		Parasitically powered microprocessor capable of transmitting data over a single data line and ground
	9	6,367,024		Low power power-on reset circuitry having dual states
	10	6,351,099		Battery monitoring system with integrated battery holder
	11	6,330,977		Electronic labeling systems and methods and electronic card systems and methods
	12	6,330,668		Integrated circuit having hardware circuitry to prevent electrical or thermal stressing of the silicon circuitry
	13	6,320,451		Static power digital potentiometer
	14	6,306,718		Method of making polysilicon resistor having adjustable temperature coefficients
	15	6,272,637		Systems and methods for protecting access to encrypted information
	16	6,259,232		Battery pack
	17	6,249,488		System and method for keeping time
	18	6,239,732		One-wire device with A-to-D converter
	19	6,237,095		Apparatus for transfer of secure information between a data carrying module and an electronic device
	20	6,219,797		Microcontroller with selectable oscillator source
	21	6,219,789		Microprocessor with coprocessing capabilities for secure transactions and quick clearing capabilities
	22	6,218,809		Method for monitoring operating parameters of a rechargeable power supply
	23	6,217,213		Temperature sensing systems and methods
	24	6,215,635		Direct-to-digital temperature sensor
	25	6,209,791		Secure storage of monetary equivalent data systems and processes
	26	6,208,114		Battery monitoring system with integrated battery holder
	27	6,198,329		Auto zero circuitry and associated method
	28	6,191,955		Encapsulation and enclosure of electronic modules
	29	6,182,235		Microcontroller with a user configurable pulse width modulator
	30	6,167,527		Clocking system for microcontrollers
	31	6,160,458		Temperature compensated crystal oscillator
	32	6,145,035		Card cradle system and method
	33	6,141,764		Method for initializing an electronic device using a dual-state power-on-reset circuit
	34	6,137,264		Battery pack
	35	6,122,704		Integrated circuit for identifying an item via a serial port
	36	6,118,690		Dual storage cell memory
	37	6,115,441		Temperature detector systems and methods
	38	6,112,275		Method of communicating over a single wire bus between a host device and a module device which measures thermal accumulation over time
	39	6,111,734		Electrostatic discharge protection circuits and application
	40	D430,119		Touch and hold connector strip for an electronic token
	41	6,108,751		Single wire data communication method
	42	6,105,013		Method, apparatus, system and firmware for secure transactions
	43	6,091,318		Integral bump technology sense resistor
	44	6,085,983		Transaction system and method
	45	6,081,154		Circuit for determining the remaining operating life of a system
	46	6,064,316		Electrical/mechanical access control systems and methods
	47	6,058,467		Standard cell, 4-cycle, 8-bit microcontroller
	48	6,038,655		Microcontroller having register direct and register indirect addressing
	49	6,036,101		Electronic labeling systems and methods and electronic card systems and methods
	50	6,035,382		Circuit for receiving a command word for accessing a secure subkey
	51	6,028,166		Method and apparatus for generating a continuous source of mixed and degassed resin
	52	6,021,494		Electronic micro identification circuit that is inherently bonded to someone or something
	53	6,021,046		Thermal protection of electrical elements systems
	54	6,020,634		Replaceable power module
	55	6,018,228		Rechargeable battery pack capable of transmitting dynamic data about itself
	56	6,016,255		Portable data carrier mounting system
	57	6,014,051		Current compensated clock for a microcircuit
	58	6,011,417		Auto zero circuitry and associated method
	59	6,005,424		Integrated power switch for parasitically powered devices
	60	6,002,274		Oversampled state machine for jitter tolerant pulse detection
	61	5,998,858		Microcircuit with memory that is protected by both hardware and software
	62	5,994,970		Temperature compensated crystal oscillator
	63	5,994,967		Oscillator circuit employing frequency-locked loop feedback topology
	64	5,994,770		Portable electronic data carrier
	65	5,991,887		Low power wake up circuitry, with internal power down of the wake up circuitry itself
	66	5,982,241		Monolithic oscillator utilizing frequency-locked loop feedback network
	67	5,982,202		Method and apparatus for pre-biasing inputs to a latching portion of a sensing amplifier
	68	5,978,927		Method and system for measuring a maximum and minimum response time of a plurality of devices on a data bus and adapting the timing of read and write time slots
	69	5,974,504		Metal token having units of value stored therein using a single wire communication method
	70	5,963,105		Trimmable circuitry for providing compensation for the temperature coefficients of a voltage controlled crystal-less oscillator
	71	5,961,356		Receptacle apparatus for electronic modules
	72	5,959,926		Programmable power supply systems and methods providing a write protected memory having multiple interface capability
	73	5,949,880		Transfer of valuable information between a secure module and another module
	74	5,940,510		Transfer of valuable information between a secure module and another module
	75	5,933,039		Programmable delay line
	76	5,923,159		Logarithmic taper resistor with zero crossing changes
	77	5,920,096		Electrostatic discharge protection systems and methods for electronic tokens
	78	5,914,543		Systems and methods for memory control
	79	5,913,552		Method of providing thermal protection of electrical elements
	80	5,913,181		Circuit for providing a switch signal to trigger changer in a digital potentiometer
	81	5,912,548		Battery pack monitoring system
	82	5,904,590		Receptacle apparatus for electronic modules
	83	5,903,767		Integrated circuit for providing supervisory functions to a microprocessor
	84	5,892,304		Power cap
	85	5,867,006		Battery charger
	86	5,864,872		Single wire communication system
	87	5,862,354		Universal asynchronous receiver/transmitter (UART) slave device containing an identifier for communication on a one-wire bus
	88	5,850,450		Method and apparatus for encryption key creation
	89	5,848,541		Electrical/mechanical access control systems
	90	5,838,256		Electronic key with three modes of automatic self-disablement
	91	5,834,834		Module mounting and adhesion systems and methods for electronic modules
	92	5,832,207		Secure module with microprocessor and co-processor
	93	5,831,827		Token shaped module for housing an electronic circuit
	94	5,829,008		Real-time clock with extendable memory
	95	5,828,240		Differential cross coupled peak detector
	96	5,825,211		Oversampled state machine for jitter tolerant pulse detection
	97	5,823,027		Electrical/mechanical access control systems and methods
	98	5,821,619		Replaceable power module
	99	5,812,005		Auto zero circuitry and associated method
	100	5,812,004		Current compensated clock for a microcircuit
	101	5,809,519		Systems and methods to convert signals multiplexed on a single wire to three wire
	102	5,809,518		Command/data transfer protocol for one-wire-bus architecture
	103	5,805,702		Method, apparatus, and system for transferring units of value
	104	5,801,411		Integrated capacitor with reduced voltage/temperature drift
	105	5,798,669		Temperature compensated nanopower voltage/current reference
	106	5,787,498		Integrated circuit memory with verification unit which resets an address translation register upon failure to define one-to-one correspondences between addresses and memory cells
	107	5,787,018		Systems and methods to gather, store, and transfer information from electro/mechanical tools and instruments
	108	5,784,624		Multiple asynchronous event arbitrator
	109	5,764,888		Electronic micro identification circuit that is inherently bonded to someone or something
	110	5,764,709		Jitter attenuator
	111	5,761,697		Identifiable modules on a serial bus system and corresponding identification methods
	112	5,760,385		Transaction system and method
	113	5,759,049		Electrical contact clip
	114	5,758,060		Hardware for verifying that software has not skipped a predetermined amount of code
	115	5,754,462		Microprocessor auxiliary with ability to be queried re power history
	116	5,754,037		Digitally adaptive biasing regulator
	117	5,749,253		Electrical/mechanical access control systems and methods
	118	5,749,143		Process for forming a module
	119	5,748,740		Method, apparatus, system and firmware for secure transactions
	120	5,731,736		Charge pump for digital potentiometers
	121	5,731,685		Battery management system
	122	5,717,935		Digital potentiometer
	123	5,694,024		Battery charger
	124	5,688,722		CMOS integrated circuit with reduced susceptibility to PMOS punchthrough
	125	5,686,863		Tunable tone control circuit and a device and method for tuning the RC constants
	126	5,684,839		Apparatus for adjusting sample points based upon measured intersymbol interference
	127	5,684,828		Wireless data module with two separate transmitter control outputs
	128	5,682,405		Ones density monitor
	129	5,682,068		Power cap
	130	5,682,051		CMOS integrated circuit with reduced susceptibility to PMOS punchthrough
	131	5,679,944		Portable electronic module having EPROM memory, systems and processes
	132	5,678,019		Real-time clock with extendable memory
	133	D384,336		Power cap cover
	134	D383,438		Power module cover
	135	5,652,539		Power regulator
	136	5,650,739		Programmable delay lines
	137	5,647,121		Method of assembling electronic component
	138	5,644,605		Jitter attenuator
	139	5,642,079		Amplifier with pole/zero compensation
	140	5,638,418		Temperature detector systems and methods
	141	D379,806		Spring connector for an electronic token
	142	5,635,873		Operational amplifier having dummy isolation stage
	143	5,631,584		Differential cross coupled peak detector
	144	5,629,907		Low power timekeeping system
	145	5,627,361		Wand for reading and writing information to electronic tokens
	146	5,619,066		Memory for an electronic token
	147	5,615,130		Systems and methods to gather, store and transfer information from electro/mechanical tools and instruments
	148	D378,580		Fob with an electronic token
	149	D378,465		Fob for electronic token
	150	5,604,343		Secure storage of monetary equivalent data systems and processes
	151	5,603,000		Integrated circuit memory with verification unit which resets an address translation register upon failure to define one-to-one correspondences between addresses and memory cells
	152	D377,647		Electronic token
	153	5,594,408		Potentiometer
	154	5,592,165		Method and apparatus for an oversampled digital to analog convertor
	155	5,592,069		Battery charger
	156	5,590,343		Touch-sensitive switching circuitry for power-up
	157	5,587,955		Electronic token
	158	5,581,507		Systems and methods for memory control
	159	5,581,505		Ram/ROM hybrid memory architecture
	160	5,579,206		Enhanced low profile sockets and module systems
	161	D375,299		Connector for an electronic token
	162	5,567,993		Programmable power supply system and methods
	163	5,566,101		Method and apparatus for a finite impulse response filter processor
	164	5,563,553		Method and apparatus for a controlled oscillation that may be used in a phase locked loop
	165	5,552,999		Digital histogram generator systems and methods
	166	5,548,550		Nonvolatile control architecture
	167	5,546,055		Crystal oscillator bias stabilizer
	168	5,544,078		Timekeeping comparison circuitry and dual storage memory cells to detect alarms
	169	5,544,063		Digital controller
	170	5,543,761		Prepackaged crystal oscillator calibration and configuration interface
	171	5,537,360		Programmable power supply systems and methods providing a write protected memory having multiple interface capability
	172	5,532,958		Dual storage cell memory
	173	5,528,463		Low profile sockets and modules for surface mountable applications
	174	5,526,274		Digital potentiometer with stackable configuration system
	175	5,525,897		Transistor circuit for use in a voltage to current converter circuit
	176	5,519,309		Voltage to current converter with extended dynamic range
	177	5,517,470		Nonvolatile control architecture
	178	5,517,447		Electronic module energy storage circuitry
	179	5,517,015		Communication module
	180	5,514,945		Battery charging systems
	181	5,513,235		Integrated circuit thermometer
	182	5,506,991		Printer port adapter with overlaid one-wire interface for electronic key
	183	5,488,284		Battery charger systems and methods
	184	5,487,096		Integrated circuit with real time, elapsed time, and cycle counter clocks
	185	5,487,037		Programmable memory and cell
	186	5,483,176		Low power module
	187	5,473,279		Integrated compander amplifier circuit with digitally controlled gain
	188	5,473,271		Microprocessor output driver
	189	5,418,936		Double-buffered systems and methods
	190	5,398,326		Method for data communication
	191	5,388,134		Integrated circuit thermometer
	192	5,381,540		Interface: interrupt masking with logical sum and product options
	193	5,381,034		SCSI terminator
	194	5,359,233		Reset monitor for detection of power failure and external reset
	195	5,355,038		Architecture for programmable delay line integrated circuit
	196	5,347,472		Precharge circuitry and bus for low power applications
	197	5,333,295		Memory control system
	198	5,327,564		Timed access system for protecting data in a central processing unit
	199	5,321,323		Surge limited low power transceiver circuit
	200	5,315,549		Memory controller for nonvolatile RAM operation, systems and methods
	201	5,306,961		Low-power integrated circuit with selectable battery modes
	202	5,303,390		Microprocessor auxiliary with combined pin for reset output and pushbutton input
	203	5,299,156		Dual port static RAM with bidirectional shift capability
	204	5,297,268		ID protected memory with a readable/writable ID template
	205	5,297,099		Integrated circuit with both battery-powered and signal-line-powered areas
	206	5,297,056		Directly-writable digital potentiometer
	207	5,287,018		Dynamic PLA time circuit
	208	5,267,222		Low power timekeeping system
	209	5,266,887		Bidirectional voltage to current converter
	210	5,260,612		Bi-level dual mode transceiver
	211	5,258,721		Ring signal detection circuit
	212	5,249,298		Battery-initiated touch-sensitive power-up
	213	5,243,535		Digital potentiometer with stackable configuration
	214	5,237,699		Nonvolatile microprocessor with predetermined state on power-down
	215	5,235,548		Memory with power supply intercept in redundancy logic
	216	5,226,137		Electronic key with multiple password protected sub-keys using address and translation to implement a block data move between public and protected sub-keys
	217	5,223,748		Battery manager
	218	5,218,707		Integrated circuit with remappable interrupt pins
	219	5,218,225		Thin-film resistor layout
	220	5,212,774		Two processor communications system with processor controlled modem
	221	5,210,846		One-wire bus architecture
	222	RE34,241		Method and apparatus for extracting a predetermined pattern from a serial bit stream
	223	5,206,905		Password protected device using incorrect passwords as seed values for pseudo-random number generator for outputting random data to thwart unauthorized accesses
	224	5,203,000		Power-up reset conditioned on direction of voltage change
	225	5,200,751		Digital to analog converter using a programmable logic array
	226	5,198,700		Doubletpulse generator
	227	5,197,142		Memory arbitration between timekeeping circuitry and general purpose computer
	228	5,194,761		Waveshaping subsystem using converter and delay lines
	229	5,191,554		Low-voltage low-power static RAM
	230	5,189,598		Dual function microboard with a row of connectors on two edges
	231	5,182,810		Isolation gates to permit selective power-downs within a closely-coupled multi-chip system
	232	5,181,091		Integrated circuit with improved protection against negative transients
	233	5,175,845		Integrated circuit with watchdog timer and sleep control logic which places IC and watchdog timer into sleep mode
	234	5,175,699		Low-power clock/calendar architecture
	235	5,172,341		Serial dram controller with multi generation interface
	236	5,168,206		Battery manager chip with connections for redundant backup battery
	237	5,166,545		Power-on-reset circuit including integration capacitor
	238	5,164,613		Reset monitor
	239	5,160,863		Delay circuit using primarily a transistor's parasitic capacitance
	240	5,159,426		Integrated circuit with improved battery protection
	241	5,151,644		Battery manager chip with crystal-controlled time base
	242	5,150,079		Two-mode oscillator
	243	5,148,051		Power up circuit
	244	5,144,586		Apparatus and method for connecting electronic modules containing integrated circuits and backup batteries
	245	5,144,173		Programmable delay line integrated circuit having programmable resistor circuit
	246	5,142,555		Phase detector
	247	5,140,197		Filtered detection plus propagated timing window for stabilizing the switch from crystal to ring oscillator at power-down
	248	5,122,474		Method of fabricating a CMOS IC with reduced susceptibility to PMOS punchthrough
	249	5,111,069		Layout of integrated circuit with very large transistors
	250	5,103,156		Battery manager chip with differential temperature sensing
	251	5,099,153		Frequency-independent monitor circuit
	252	5,097,154		Latched multiplexer for stabilizing the switch crystal to ring oscillator at power-down
	253	5,095,289		Adjustable crystal controlled oscillator
	254	5,091,771		Compact package for electronic module
	255	5,059,836		Differential-time-constant bandpass filter using the analog properties of digital circuits
	256	5,050,113		Low power timekeeping system
	257	5,047,663		Low-power comparator which tolerates high-slew-rate incoming signals and deriving power from the incoming signals
	258	5,045,675		Serial port interface to low-voltage low-power data module
	259	5,033,027		Serial DRAM controller with multi generation interface
	260	5,032,742		ESD circuit for input which exceeds power supplies in normal operation
	261	5,027,326		Self-timed sequential access multiport memory
	262	5,025,486		Wireless communication system with parallel polling
	263	5,025,177		Sensitive low power comparator
	264	5,025,141		Hand-held wand for reading electronic tokens
	265	5,021,730		Voltage to current converter with extended dynamic range
	266	5,013,932		Waveshaping subsystem using converter and delay lines
	267	5,010,331		Time-key integrated circuit
	268	5,005,151		Interleaved arbitration scheme for interfacing parallel and serial ports to a parallel system port
	269	5,003,501		Precharge circuitry and bus for low power applications
	270	5,003,362		Integrated circuit with high-impedance well tie
	271	4,996,453		Power down circuit for low-power circuit with dual supply voltages
	272	4,995,004		RAM/ROM hybrid memory architecture
	273	4,992,674		Controlled slew peak detector
	274	4,989,261		Power supply intercept with reference output
	275	4,985,870		Apparatus for connecting electronic modules containing integrated circuits and backup batteries
	276	4,984,291		Coded communication system with shared symbols
	277	4,983,820		Interface for receiving electronic tokens
	278	4,982,371		Compact electronic module having a RAM device
	279	4,980,746		Integrated circuit with improved battery protection
	280	4,979,016		Split lead package
	281	4,978,869		ESD resistant latch circuit
	282	4,977,537		Dram nonvolatizer
	283	4,972,377		Low-voltage low-power static ram
	284	4,967,108		Differential-time-constant bandpass filter using the analog properties of digital circuits
	285	4,965,794		Telecommunications FIFO
	286	4,959,646		Dynamic PLA timing circuit
	287	4,955,038		Low-power RF receiver
	288	4,952,817		Self-starting test station
	289	4,950,620		Process for making integrated circuit with doped silicon dioxide load elements
	290	4,948,954		Interface for receiving electronic tokens
	291	4,947,477		Partitionable embedded program and data memory for a central processing unit
	292	4,945,217		Hand-held wand for reading electronic tokens
	293	4,943,804		Electronic key locking circuitry
	294	4,943,537		CMOS integrated circuit with reduced susceptibility to PMOS punchthrough
	295	4,942,593		Telecommunications interface with improved jitter reporting
	296	4,940,910		Temperature compensated monolithic delay circuit
	297	4,937,781		Dual port ram with arbitration status register
	298	4,935,645		Fusing and detection circuit
	299	4,912,435		Low-voltage oscillator with separate startup mode
	300	4,908,796		Registered outputs for a memory device
	301	4,908,790		Backup battery switching circuitry for a microcomputer or a microprocessor
	302	4,906,588		Enclosed buried channel transistor
	303	4,903,299		ID protected memory with a maskable ID template
	304	4,897,860		Programmable time base circuit with protected internal calibration
	305	4,897,662		Integrated circuit with wireless freshness seal
	306	4,894,791		Delay circuit for a monolithic integrated circuit and method for adjusting delay of same
	307	4,890,263		RAM with capability for rapid clearing of data from memory by simultaneously selecting all row lines
	308	4,885,716		High speed carry chain
	309	4,876,465		Dynamic CMOS buffer for low current switching
	310	4,873,665		Dual storage cell memory including data transfer circuits
	311	4,871,982		Low-voltage oscillator with separate startup mode
	312	4,870,401		Electronic key locking circuitry
	313	4,868,525		Temperature-stabilized oscillator
	314	4,866,301		Controlled slew peak detector
	315	4,862,310		Low leakage battery protection diode structure
	316	4,857,767		High-density low-power circuit for sustaining a precharge level
	317	4,855,690		Integrated circuit random number generator using sampled output of variable frequency oscillator
	318	4,850,000		Gated shift register
	319	4,843,265		Temperature compensated monolithic delay circuit
	320	D301,713		Portable memory module
	321	4,839,893		Telecommunications FIFO
	322	4,810,975		Random number generator using sampled output of variable frequency oscillator
	323	4,746,823		Voltage-insensitive and temperature-compensated delay circuit for a monolithic integrated circuit
	324	4,730,346		Method and apparatus for extracting a predetermined bit pattern from a serial bit stream
	325	4,730,121		Power controller for circuits with battery backup
	326	4,727,558		Method and apparatus for extracting a predetermined bit pattern from a serial bit stream
	327	4,713,555		Battery charging protection circuit
	328	4,709,172		Input-voltage detector circuit for CMOS integrated circuit
	329	4,654,829		Portable, non-volatile read/write memory module
	330	4,645,943		Space-saving back-up power supply