Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 6963547 | Local multipoint distribution system and ATM data communication method thereof Disclosed a local multipoint distribution system (LMDS) and method of communicating ATM data on the LMDS that establishes a virtual circuit using a head-end unit to allow a bidirectional communication on ATM network and provide a medium access control(MAC) protocol ... | 11/08/2005 |
| RE38720 | Image motion compensating address generator An image motion compensating address generator is disclosed including a mode selector for selecting a field mode or frame mode according to a video mode signal and a slice position signal, an address selection controller for controlling the generation of addresses a... | 04/12/2005 |
| 6118174 | Bottom lead frame and bottom lead semiconductor package using the same A bottom lead frame and a bottom lead semiconductor package embodying the invention are capable of forming a multiple row pin structure. The bottom lead frame includes a plurality of first leads, and a plurality of second leads, where each lead has a bott... | 09/12/2000 |
| 6116738 | Corneal topographer with central and peripheral measurement capability A videokeratograph has a placido disc with rings concentric about a central axis, a center positioned on the central axis, and an observation opening at the center. A plurality of fixation points are positioned in the placido disc spaced from the center o... | 09/12/2000 |
| 6118687 | Nonvolatile ferroelectric memory without a separate cell plate line and method of manufacturing the same A nonvolatile ferroelectric memory having a pair of split word lines rather than a word line and a plate line simplifies the manufacturing process and allows high density integration. The memory includes a first and second transistors, each having a sourc... | 09/12/2000 |
| 6119076 | Lamp monitoring and control unit and method A unit and method for remotely monitoring and/or controlling an apparatus and specifically for remotely monitoring and/or controlling street lamps. The lamp monitoring and control unit comprises a processing and sensing unit for sensing at least one lamp ... | 09/12/2000 |
| 6114979 | (N) bit (M) ternary coding circuit A coding circuit of the present invention converts n-bit binary data word at a prescribed clock cycle (t) into to an m-trit ternary code word, where n and m are integers and nࣙm. The coding circuit includes an (x) number of storage elements or latches a... | 09/05/2000 |
| 6093959 | Lead frame having supporters and semiconductor package using same A lead frame and a semiconductor chip package includes supporters on a lead frame paddle and tiebars using the same for preventing undesired paddle bending which may occur due to the pressure of an epoxy molding compound during the molding process. The su... | 07/25/2000 |
| 6090719 | Dry etching method for multilayer film A dry etching method for a multilayer film is disclosed, which is capable of dry-etching a multilayer film such as a titanium polyside (a polysilicon layer and a titanium silicide layer) and includes the steps of a first step for anisotropically etching t... | 07/18/2000 |
| 6081200 | Single ID radio pager for receiving traffic status data A radio pager includes a decoder for decoding coded data transmitted from a central office at a predetermined interval. The decoder classifies the data into one of traffic information and a call number, and informs a control unit of the result. If the ide... | 06/27/2000 |
| 6078838 | Pseudospontaneous neural stimulation system and method A signal processing apparatus and method for neural stimulation is provided that can generate stochastic independent activity across an excited nerve or neural population. High rate pulse trains, for example, can produce random spike patterns in auditory ... | 06/20/2000 |
| 6072726 | Method for copying flash memory with duplexed processor board The present invention discloses a method for copying flash memories of multiple processor boards without the need of a separate copying device. Particularly, the present invention discloses a system with a duplex processor boards and inserting the flash m... | 06/06/2000 |
| 6069721 | Radio frequency control circuit of base station of mobile communications systems The radio frequency control circuit of the base station of a mobile communications system is constructed in a manner that the transmitting coupler branching the transmission signal to the shadow region is connected between the transmitting side power ampl... | 05/30/2000 |
| 6060930 | Delay circuit A delay circuit which is capable of maintaining a constant delay time. The circuit includes a plurality of first delay circuits connected in series and each having an inverter for inverting an input voltage signal, and a variable capacitor connected to an... | 05/09/2000 |
| 6060928 | Device for delaying clock signal Device for delaying a clock signal using a ring delay is disclosed. The device can include a delay for delaying an external clock signal eCLK as much as time delays d1+d2 of a time delay d1 occurring on reception and a time delay d2 occurring on driving a... | 05/09/2000 |
| 6055451 | Apparatus and method for determining tissue characteristics An apparatus and method embodying the invention include utilizing a device intended to be inserted into a patient's body to determine a characteristic of a target tissue. In one apparatus and method, a device illuminates the target tissue with amplitude m... | 04/25/2000 |
| 6055620 | Apparatus and method for system control using a self-timed asynchronous control structure A control apparatus and method is provided for controlling operations of functional units in systems. The control apparatus and method implement a set of operations that can include dependencies between the functional units of a system to complete each op... | 04/25/2000 |
| 6052378 | Base band signal transmitting device in base station of mobile communication system using CDMA A base band signal transmitting device in a base station of a mobile communications system is disclosed including a CDMA modem unit constructed in a manner that a plurality of CDMA modems are detachably mounted on one board, each of the CDMA modems conver... | 04/18/2000 |
| 6049367 | Polarization manipulating device modulator with retarder stack which preconditions light for modulation and isotropic states The present invention provides a high brightness subtractive color filter formed by an electro-optic modulator positioned between two retarder stacks. The second retarder stack echoes the first retarder stack, having the same sequence of retardances but i... | 04/11/2000 |
| 6049882 | Apparatus and method for reducing power consumption in a self-timed system A power consumption control apparatus and method for an asynchronous system is provided that reduces power consumption by selecting one of a plurality of power consumption levels for the system. The power consumption levels can be determined based on work... | 04/11/2000 |
| 6049245 | Power reduction circuit A power reduction circuit is provided that includes a first switching device between a first operating voltage terminal and a second operating voltage terminal being controlled by a first active signal. A second switching device is between a third operati... | 04/11/2000 |
| 6045369 | Device for mounting semiconductor package and method of fabricating same An improved device for mounting a semiconductor package when testing electrical characteristics of the semiconductor package is capable of reducing stress which is applied to the semiconductor package. The device includes a shaped body, a plurality of spa... | 04/04/2000 |
| 6045502 | Analyzing system with disposable calibration device A system and method for calibrating a measurement instrument prior to making a measurement on a material or tissue includes utilizing a removable calibration device to calibrate the instrument, then removing a target portion of the calibration device so t... | 04/04/2000 |
| 6043683 | Output pad circuit using control signal An output pad circuit is provided that adjusts a driving output current size within the chip based on a control signal. Thus, the output pad circuit adjusts a driving output current size, without attaching an external buffer or exchanging the output pad c... | 03/28/2000 |
| 6043679 | Level shifter A level shifter, irrespective of a variation of a threshold voltage, is capable of changing input signals of 0 volt and 5 volts to the signals of -10 volts and 10 volts, respectively, without using an additional voltage and an inverted signal even when a ... | 03/28/2000 |
| 6043493 | Infrared sensor and method for compensating temperature thereof Infrared sensor that can make a temperature compensation by itself, and method for compensating a temperature thereof, are disclosed. The infrared sensor preferably includes a substrate, a diaphragm formed on the substrate, and a first thermopile sensor f... | 03/28/2000 |
| 6043430 | Bottom lead semiconductor chip package A bottom lead package is capable of increasing a memory capacity for a mounting position on a mother board by stacking several semiconductor packages such that exposed surfaces of leads on upper and lower surfaces of the package are aligned. The package i... | 03/28/2000 |
| 6043711 | Gate bias circuit of a power amplifier FET A gate bias circuit of a power amplifier FET, for maintaining a constant operating point, by changing a gate bias voltage, corresponding to a fluctuation of threshold voltage in the respective products of FET, has a construction at least one gate bias FET... | 03/28/2000 |
| 6043697 | Clock signal control apparatus for data output buffer A clock signal control apparatus for a data output buffer that controls a data access time and an output signal maintaining time of the data output buffer based on a period of an input first clock signal. The apparatus includes a clock signal generator fo... | 03/28/2000 |
| 6044453 | User programmable circuit and method for data processing apparatus using a self-timed asynchronous control structure A programmable circuit and method for a data processing apparatus is provided that allows an entire instruction or instruction set to be modified. According to the present invention, the instruction can be modified, for example, during initialization or e... | 03/28/2000 |
| 6040715 | Output buffer control circuit that performs high speed operation by generating a predetermined width of a pulse based on an output control signal An output buffer control circuit is provided in which a three-phase (state) level of an output warning can be realized in a short time, which results in increasing the processing speed. The output buffer control circuit uses a predetermined width pulse at... | 03/21/2000 |
| 6041338 | Interpolation filter system A data interpolating filter is disclosed, in which a wave digital filter is used for processing two-channel data with one data path. A sample and hold part samples and holds data, and selectively provides the sampled and held data for at least two differe... | 03/21/2000 |
| 6040883 | Programmable hologram generator A programmable hologram generator comprises a layered structure of a pixelated VLSI chip, a reflective ferroelectric liquid crystal that is physically disposed on the VLSI chip, and a photorefractive crystal that is physically disposed on the liquid cryst... | 03/21/2000 |
| 6038224 | Data control system in CDMA mobile communication system A data control system in a CDMA mobile communication system can achieve data communication with a public network subscriber, even if a modem is not mounted on a computer of a mobile telephone subscriber, and simultaneously minimize data transmission error... | 03/14/2000 |
| 6038175 | Erase verifying apparatus in serial flash memory having redundancy and method thereof An erase verifying apparatus includes: a memory cell array including a plurality of main areas and redundant areas having one or more cells, the main areas and redundant areas forming an erase block, a wordline circuit for controlling wordlines in the mem... | 03/14/2000 |
| 6038058 | Grid-actuated charge controlled mirror and method of addressing the same A micromirror light valve target configuration that overcomes the problems of limited deflection range, electrostatic and resolution by forming the secondary electron collector grid of a fine conductive mesh and placing it in close proximity to the microm... | 03/14/2000 |
| 6034892 | Nonvolatile memory cell and method for programming and/or verifying the same Nonvolatile memory device and a method of programming the same, is disclosed, wherein, for single level or multi-level programming of a cell, predetermined voltages are applied to a control gate, source and drain respectively for varying a charge amount i... | 03/07/2000 |
| 6034810 | Field emission charge controlled mirror (FEA-CCM) A bright, high contrast, compact, large area, high-resolution light modulator uses a field emitter array (FEA) to address a charge controlled mirror (CCM). The FEA deposits a charge pattern onto the CCM, which in turn produces electrostatic forces that de... | 03/07/2000 |
| 6034807 | Bistable paper white direct view display A thin low power, paper white, direct-view display includes an array of bistable micromirrors that are deflected between two stable states, a dark state in which the mirror covers a portion of the background and a white state in which the mirror uncovers ... | 03/07/2000 |
| 6033970 | Method for forming device-isolating layer in semiconductor device A method for forming a device-isolating layer of a semiconductor device in which an APCVD oxide layer and an HDPCVD oxide layer are successively deposited to fill trenches. The method includes forming a thermal oxide layer on a semiconductor substrate inc... | 03/07/2000 |
