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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7378897 | Input stage for multiplexing and methods for using an input stage for multiplexing Input stages for use in multiplexing, and methods for using the same, are provided herein. An input stage includes an input terminal and an output terminal. A voltage input signal is accepted at the input terminal of the input stage. When the input stage is selected... | 05/27/2008 |
| 7245174 | Analogue switch A switching circuit (20) comprising first and second switch terminals (2,3) and a switch (21). The switch (21) comprises a first bipolar transistor (22), having a collector connected to the first switch terminal (2) and an e... | 07/17/2007 |
| 7154918 | Multiplexer circuit for converting parallel data into serial data at high speed and synchronized with a clock signal A multiplexer circuit, converting parallel data into serial data and synchronized with a clock signal, has a plurality of multiplexer cells that receive the parallel data. Each of the multiplexer cells has a first load, a plurality of first conductivity type transis... | 12/26/2006 |
| 7126408 | Method and apparatus for receiving high-speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 10/24/2006 |
| 7098684 | High speed switch A high speed switch. The novel switch includes an input circuit having a transistor Q1 for receiving an input signal, a first mechanism for providing a path from an output of Q1 to an output terminal, and a second mechanism for receiving a control sign... | 08/29/2006 |
| 7038519 | Digital clock manager having cascade voltage switch logic clock paths A digital clock manager having differential clock signal paths is provided. The differential clock signal paths are provided by replacing single-ended circuit elements of a conventional digital clock manager with symmetrical cascade voltage switch logic (CVSL) circu... | 05/02/2006 |
| 7031349 | Multiplexer circuit and analogue-to-digital converter A multiplexer circuit (100) has at least two input channels (IN0, IN1) and an output channel (2). Each input channel (IN0, IN1) has a first transmission gate (FT0, FT1) and a second tran... | 04/18/2006 |
| 7023751 | Method and circuit for reducing DRAM refresh power by reducing access transistor sub threshold leakage The required refresh rate of a DRAM is reduced by biasing active digit lines to a slight positive voltage to reduce the sub threshold current leakage of access transistors in memory cells that are not being accessed. The slight positive voltage is provided by a volt... | 04/04/2006 |
| 6965262 | Method and apparatus for receiving high speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 11/15/2005 |
| 6892061 | Mixer circuit configuration A circuit configuration for mixing a differential desired signal with a differential local oscillator signal includes two difference amplifiers which are controllable on the input side by the desired signal and cross-coupled on the output side. Currents flowing thro... | 05/10/2005 |
| 6774699 | BJT mixer for low supply voltage A BJT operating as a mixer has its collector biased at the knee of the IC vs VCE characteristic. A local oscillator voltage is applied to the base and an RF signal voltage is applied to the collector through a singled-ended emitter follower. Th... | 08/10/2004 |
| 6674327 | Combined multiplexer and switched gain circuit A combined multiplexer and switched gain circuit (250) that selectively multiplexes differential analog signals from a primary channel (20) and a diversity channel (22) in a diversity receiver system (10) to a single output. The circuit (250) is based on ... | 01/06/2004 |
| 6642771 | Integrated XOR/summer/multiplexer for high speed phase detection A high speed phase detector utilizes an integrated XOR/SUMMER/MUX circuit having a higher bandwidth and lower power than conventional designs. The XOR/SUMMER/MUX circuit combines the functionality of two parallel XOR devices in series with a summer/multip... | 11/04/2003 |
| 6566912 | Integrated XOR/multiplexer for high speed phase detection A high speed phase detector utilizes an integrated XOR/MUX circuit having a higher bandwidth and lower power than conventional designs. The XOR/MUX circuit combines the functionality of an XOR device in series with a multiplexer in a manner that increases... | 05/20/2003 |
| 6531910 | Symmetric multiplexer A multiplexer is provided that is symmetric in that substantially the same delay is experienced from any input of the multiplexer to the multiplexer output. It is realized that in conventional serial transmission systems, standard Current Mode Logic (CML)... | 03/11/2003 |
| 6369637 | Analog BiCMOS multiplexers with CMOS control signals High-bandwidth, analog multiplexer circuits with low signal feed-through and good common mode properties are described. These are BiCMOS circuits with N-MOS control transistors which emphasize low parasitic capacitance through circuit layout techniques an... | 04/09/2002 |
| 6229377 | Dual amplitude pulse generator for radiation detectors A pulsing circuit for producing an output signal having a high amplitude pulse and a low amplitude pulse may comprise a current source for providing a high current signal and a low current signal. A gate circuit connected to the current source includes a ... | 05/08/2001 |
| 6208193 | Multiplexer control scheme A circuit comprising a plurality of input devices, a plurality of de-select devices and a selector device. The plurality of input devices may each be configured to receive an input signal. The plurality of de-select devices may each be configured to prese... | 03/27/2001 |
| 5923207 | Complementary multiplexer with low disabled-output capacitance, and method A complementary multiplexer with low disabled output capacitance and method in which a plurality of switched buffers are packaged together to avoid the capacitance of a plurality of switched buffers applied to the printed-circuit board transmission lines.... | 07/13/1999 |
| 5917370 | Split load resistor for wideband preamplifier for magneto-resistive head A switch (380) couples one group of MR channels (340, 342, 344) while decoupling another group of MR channels (340, 342 and 344). Thus, the parasitic capacitance associated with the decoupled group of MR channels does not limit the frequency response of t... | 06/29/1999 |
| 5832305 | Multiple stage analog bi-directional selector utilizing coupled pairs of bi-polar junction transistors connected to pull-up resistors A multi-stage analog bi-directional selector which has a low input impedance and cost. The multi-stage analog bi-directional selector includes a plurality of analog switches including first and second bi-polar transistors coupled together at first and sec... | 11/03/1998 |
| 5767730 | Input switch circuit for switching two video signals The collector of the first transistor having the base to which the first signal input is supplied, is connected to the collector of the second transistor having the base to which the second signal input is supplied. The diode-connected third transistor is... | 06/16/1998 |
| 5760635 | Apparatus for switching channels within a multi-channel read/write preamplifier circuit A switching apparatus for switching between channels within a read/write pre-amplifier circuit in a multi-channel magnetic media storage system switches between the channels and couples an active magnetoresistive sensor to receive biasing current and to a... | 06/02/1998 |
| 5694075 | Substrate clamp for non-isolated integrated circuits A substrate clamp for non-isolated integrated circuits is disclosed. The substrate clamp comprises a circuit that controls the voltage on a substrate so that the substrate is connected to a specific node if the parasitic PN diodes at all the circuit nodes... | 12/02/1997 |
| 5654669 | Programmable instrumentation amplifier A first amplifier channel between an input and output includes an input transistor emitter and a first output transistor emitter connected together to form a first emitter pair. A current source is connected to the emitter pair via a transistor which is c... | 08/05/1997 |
| 5585755 | Audio differential bus receiver for audio/video interconnection Audio bus receiver includes a pair of bipolar transistors each having a base coupled via a respective resistor to a respective bus receiver input terminal, each having an emitter that is diode coupled to a respective current source and each having a colle... | 12/17/1996 |
| 5570056 | Bipolar analog multipliers for low voltage applications An analog circuit for multiplying a first input signal with a second input signal. The inventive analog circuit is capable of linear operation with a low voltage power source. A first pair of transistors is coupled as a first differential pair, and a seco... | 10/29/1996 |
| 5568074 | Voltage monitoring circuit The positive input terminal (1), the negative input terminal (2) and the differential amplifier (10) are connected to the voltage converting circuit (9a). The differential amplifier (10) is composed of the operational amplifier (6) and the resistors (5a, ... | 10/22/1996 |
| 5565804 | Signal switching circuit A signal switching circuit is provided to output signal switching between a first and a second input signal. The circuit includes a first analog switch transistor, a first switch transistor, a second analog switch transistor, a second switch transistor an... | 10/15/1996 |
| 5523713 | Multiplex circuit arrangement for use with a semiconductor integrated circuit A multiplex circuit is disclosed in which a plurality of bipolar transistors are combined and in which the respective base terminals thereof are used as inputs, thereby to construct an emitter follower type multiplex circuit. In such an emitter follower t... | 06/04/1996 |
| 5502413 | Switchable constant gain summing circuit A switchable constant gain summer circuit (10) has been provided. The summer circuit selectively amplifies a plurality of input signals while maintaining a constant dc current flowing through a load which maintains a constant gain for the summer circuit. ... | 03/26/1996 |
| 5402013 | Common mode logic multiplexer configuration A multiplexer configuration includes at least one first and one second group of transistors each including one first, one second and at least one third transistor. Current sources are connected to a first supply potential terminal and emitters of the tran... | 03/28/1995 |
| 5384546 | Time domain component multiplexor An integrated circuit in which closer matching or tracking of critical components, both active and passive, is achieved by time domain multiplexing of these critical components. Time domain multiplexing means that each of the components to be matched is a... | 01/24/1995 |
| 5352987 | Analog multiplexer An analog multiplier includes a plurality of input stages that are selectively coupled to inputs of a common amplifier through coupling elements and logic circuitry that selectively controls conduction through the coupling elements to the amplifier. The c... | 10/04/1994 |
| 5331216 | High speed multiplexer A high speed bipolar multiplexer circuit adds less than ten picoseconds delay to the data or test paths. The multiplexer circuit incorporates a low gain linear amplifier which is completely stable and compensates for any level losses through the input emi... | 07/19/1994 |
| 5304853 | Multiplexer A multiplexer capable of selecting and outputting only one signal from among a plurality of input signals, based on control signals. The multiplexer includes a constant current supplying section for supplying a circuit operating power and a signal input/o... | 04/19/1994 |
| 5196733 | Crosstalk-resistant multi-input to single output analog switching device A crosstalk-resistant multi-input to single output analog switching device is provided to prevent an appearance of a unwanted input signal at an output stage when any one of a diverse switches is selected in particular electronic and or electric products ... | 03/23/1993 |
| 5189312 | Multiplexer circuit having a simplified construction and reduced number of parts A multiplexer circuit comprises a plurality of voltage generation circuits which produce corresponding output voltages having respective, different voltage levels in accordance with an ordered sequence thereof, from the lowest to the highest level. The ou... | 02/23/1993 |
| 5180934 | Self-enabling data-collision avoidance arrangement using a peak detector In a system for communicating between multiple signal sources and at least one destination, communications occur via a communications, line shared by the signal sources. The multiple signal sources are coupled to the shared communications line via respect... | 01/19/1993 |
| 5148121 | Amplifier circuit designed for use in a bipolar integrated circuit, for amplifying an input signal selected by a switch circuit An amplifier circuit having a switch (SW), wherein the switch selects one of a plurality of input voltage-to-current converting amplifiers (GM1 to GMn), and the input amplifier, thus selected, converts an input signal into a current. This current is added... | 09/15/1992 |
