Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 7292700 | Microphone for a hearing aid A microphone assembly having a housing, a transducer, and an electronic circuit. The housing has an opening, and the transducer is disposed within that opening. The electronic circuit covers the opening such that the transducer is surrounded by at least the electron... | 11/06/2007 |
| 7291123 | Joint for fluid transport lines for medical use The joint (36) comprises a tubular body (37) having two connecting zones (38, 39) each connected by an end to a tubular element (40) of a fluid transport line, giving continuity to passage of fluid. The tubular body is made of a mixture o... | 11/06/2007 |
| 7026842 | Method and apparatus for reliable pulse event detection A circuit for detecting asynchronous events includes a first event detection latch; and a second event detection latch coupled to the first event detection latch, wherein the first event detection latch is ready to detect an event when the second event detection lat... | 04/11/2006 |
| 6925170 | Wire-bound telecommunication device and a circuit for use in such a device In known telephone subscriber end stations a caller_ID IC detects a tone alerting signal TAS alerting that successive caller_ID information can be received for displaying on a display of the phone. The known station applies narrow frequency band filters to detect to... | 08/02/2005 |
| 6590440 | Low-side bidirectional battery disconnect switch A bidirectional battery disconnect switch, i.e., a switch which is capable of blocking a voltage in either direction when open and conducting a current in either direction when closed, is disclosed. The switch includes a four-terminal MOSFET having no sou... | 07/08/2003 |
| 6531898 | Device using a detection circuit to determine whether an output current thereof is source-induced or load-induced, and method therefor A device which uses a detection circuit to determine whether an output current thereof is source-induced or load-induced, and the method therefor. The device which performs some type of operation based upon the determination as to whether the output curre... | 03/11/2003 |
| 5821794 | Clock distribution architecture and method for high speed CPLDs The present invention provides a clocking circuit allowing individual macrocells in a particular macrocell block of a CPLD to use different polarities of the same clock. The input clock pin can now drive all the macrocells directly, which can eliminate ad... | 10/13/1998 |
| 5821643 | Synchronization control scheme for a plurality of switching circuits, method of operation therefor and battery plant employing the same A synchronization control scheme that provides a drive signal to a plurality of switching circuits and method of operation therefor. The synchronization controller, includes: (1) a plurality of dual threshold relaxation oscillators, coupled to a correspon... | 10/13/1998 |
| 5742188 | Universal input data sampling circuit and method thereof A circuit for detecting timing errors and for selecting the correct clock edge for mid-point data sampling, includes a rising edge sampling device for sampling an input data signal at a rising edge of an input clock and generating a first interim data sig... | 04/21/1998 |
| 5661420 | Mounting configuration for monolithic integrated circuit A power supply circuit is set forth which overcomes the problems associated with incorrect battery insertion. The power supply circuit includes first and second battery terminals for electrical connection to the battery. The first and second battery termi... | 08/26/1997 |
| 5646463 | Synchronization control for interrelated DC voltage/battery polarity switching circuits A plurality of battery/voltage polarity switching circuits are constrained to operate in switching synchronism by a timing circuit associated with each polarity switching circuit that are interrelated to one another such that only the fastest response tim... | 07/08/1997 |
| 5594381 | Reverse current prevention method and apparatus and reverse current guarded low dropout circuits A reverse current limited circuit configured to provide a reverse current limited low dropout voltage output. The reverse current limited circuit, coupled between a pair of terminals, comprises (i) a MOS pass transistor coupled in series between the first... | 01/14/1997 |
| 5481211 | Automatic polarity switching output circuit A measurement circuit in the output circuit of a sensor detects the polarity of a source to which a load is connected. The detection of one of the two polarities establishes one of two states which is stored in a storing element and the correct one of two... | 01/02/1996 |
| 5043606 | Apparatus and method for programmably controlling the polarity of an I/O signal of a magnetic disk drive A programmable register stores a control bit for settting the logic polarity of an I/O signal at an I/O terminal of an integrated circuit. The I/O polarity control signal is combined in an exclusive-OR logic circuit with the I/O signal to provide a given ... | 08/27/1991 |
| 4870297 | Circuitry for removing information from, or modifying information in, the vertical interval of a television signal Composite sync is separated from a video signal and integrated in order to produce a vertical control pulse. This pulse is then applied to the input of a one-shot multivibrator which provides an output essentially equal in duration to the time from the en... | 09/26/1989 |
| 4763017 | Electronic bipolar interface circuit An electronic bipolar interface driver circuit for interconnecting a microprocessor to an electromagnetic relay load. The driver circuit includes a peripheral adapter circuit having a pair of outputs connected to a respective one of the two inputs of a pa... | 08/09/1988 |
| 4309664 | Digital energy line sensor A digital line sensor includes a voltage sensor which receives transmission of unipolar pulses. A pulse former, coupled to receive the output of the voltage sensor, is coupled to an analog integrator, which, in turn, is coupled to an energy sensor, The di... | 01/05/1982 |
| 4088901 | Circuit for recognizing a pulse waveform and an ignition system for an i.c. engine including such a circuit A pulse waveform recognition circuit includes an input stage consisting of a tuned circuit tuned to approximately the frequency of a sinusoid to half-waves of which the pulses to be recognized approximate. A transistor is biased to conduct weakly and has ... | 05/09/1978 |
| 3989958 | Low current drain amplifier with sensitivity adjustment means An amplifier circuit for detecting low level signals of positive or negative amplitude, and for producing an output pulse whenever the input signal exceed a predetermined threshold level. A first operational transconductance amplifier is used as an amplif... | 11/02/1976 |
| 3969677 | Frequency responsive polarity discriminator A sensing circuit using a polarity discriminator with feedback means for selecting one polarity component of a bi-polar non-symmetrical waveshape signal input, while rejecting the opposite polarity component. The circuit operates on both the amplitude and... | 07/13/1976 |
