| Document |
Document Title |
|
WO/1998/021743A1 |
A device that is to be electrically connected to each one of the photo-detector output signals in an image sensor array is comprised of an arrangement of capacitors (C01, C02), resistors (R01, R02, R03), amplifiers, comparators (Cm), and...
|
|
WO/1998/019395A1 |
A delay time control circuit controls delay times without a significant increase of power consumption or circuit components. The delay time control circuit for controlling delay times in a logic circuit (13) includes a delay circuit (10)...
|
|
WO/1998/013894A1 |
An active device (16), such as a field effect transistor ('FET') (70), converts microwave signals between a slot transmission line ('slotline') (12) and a coplanar waveguide ('CPW') (14). In slotline-to-CPW conversion using one or more F...
|
|
WO/1998/010527A1 |
A CMOS transmission line equalizer is provided for receiving distorted signals transmitted through a transmission line and for compensating for the signal distortion. The equalizer has a transfer function characteristic with a single pol...
|
|
WO/1998/010512A1 |
A resistorless amplifier circuit uses integrated operational transconductance amplifiers to realize a plurality of circuit transfer functions. The preferred embodiment produces an output signal voltage V�out? (500) that is either g�m...
|
|
WO/1998/004038A1 |
In a digital CMOS process neither resistors nor linear capacitors are available and it is not possible or simply not practical to design continuous-time filters using traditional methods. It has therefore been proposed to utilize current...
|
|
WO/1998/004037A2 |
An electronic circuit comprises coupled transconductors. The transconductors comprise two complementary differential pairs (P1/P2; N1/N2) whose outputs are connected directly to two output terminals (OA, OB). Two diodes (P3, N3) are arra...
|
|
WO/1998/001952A1 |
A phase locked loop including an in-phase detector (IPD), a quadrature phase detector (QPD), a frequency detector (FD), a squelch, a filter, and a voltage controlled oscillator (VCO). The in-phase detector has an IPD sample input, an IPD...
|
|
WO/1997/049216A1 |
An improved coding system (fig. 1) for digital compression applicable as a digital compression algorithm for increasing the bandwidth of telecommunications and broadcasting network. The system operates in the transmission regime, not in ...
|
|
WO/1997/044896A1 |
A phase shifting electric circuit (1) comprises units for conveying an input signal (V1) from a main signal input (12) to a main signal output (11). The circuit (1) has a first signal path (18), from the input (12) to the output (11), al...
|
|
WO/1997/034366A1 |
A microwave differential amplifier comprises a first and a second matched NMOS device, each connected with the source to a common bias node, the gate to an input port for receiving a differential input signal and with the drains to an ou...
|
|
WO/1997/033379A2 |
A description is given of a circuit arrangement comprising a filter quadripole having two output terminals; and a voltage follower circuit having two terminals, said terminals having identical electric potentials when the voltage followe...
|
|
WO/1997/032396A1 |
A frequency-dependent resistor comprising phase rotating devices each of which rotates the phase of the input voltage by 90� and is constituted by connecting a reactance load represented by a coil or capacitor to the output of a voltag...
|
|
WO/1997/029545A1 |
A quadrature oscillator (152) includes an amplitude control circuit (154) that is based upon a trigonometric identity. The amplitude control circuit (154) includes two squaring circuits (174, 176), each receiving a respective quadrature ...
|
|
WO/1997/026706A1 |
An active filter circuit component includes an all NPN bipolar tunable Gm cell (14) and positive current source (PCS) (12) for supplying common mode current. The tunable Gm cell includes a fixed Gm cell (26) having transconductance Gf, a...
|
|
WO/1997/024803A1 |
BPFs (12a-12n) extract prescribed frequency components contained in luminance signal, and limiter amplifiers (16a-16n) amplify the components. As a result, addition signals containing amplified and suppressed luminance signal component a...
|
|
WO/1997/023041A1 |
An attenuator circuit having three cascaded attenuator stages which become active, one at a time, as an input signal strength increases. In the highest gain state, the three attenuator stages are active. As the input signal increases, th...
|
|
WO/1997/022178A1 |
A tuning circuit which has a wide tuning band width, the tuning band width or tuning frequency being easily changed. The tuning circuit (1) is constituted of two cascade-connected tuning amplifiers (2, 3). Each of the amplifiers (2, 3) i...
|
|
WO/1997/020388A1 |
The invention relates to an impedance means (5) having a first conductor (10, L1) and a second conductor (40, L2), the first and second conductors being positioned in relation to each other so as to provide magnetic coupling (L12) betwee...
|
|
WO/1997/017754A1 |
A tuning amplifier (1) is provided with two cascade-connected phase-shifting circuits (10C and 30C) and an adding circuit composed of a feedback resistor (70) and input resistor (74). The circuit (10C) is constituted of an operational am...
|
|
WO/1997/004524A1 |
A voltage controlled filter circuit with a voltage controlled resistor as a control element having a D.C. voltage applied to an ADC (analog to digital converter) compared to a supplied reference voltage, and as bits are set to HIGH or LO...
|
|
WO/1997/001931A1 |
A wideband signal distribution system for distributing among a plurality of outlets wideband signals modulated onto RF carrier signals within a specified frequency band. The system functions as "passive" infrastructure and includes a dis...
|
|
WO/1996/042134A1 |
An amplifier comprising a first amplifier circuit (1) constituted of a first transistor (10), a second amplifier circuit (2) constituted of a second transistor (11) and a first filter (3) having a desired passband and a desired attenuati...
|
|
WO/1996/038908A2 |
In an amplifier module circuit, an input transformer (TI) transforms an input signal (ISU) into a transformed input signal (ISB), which is supplied to a pair of amplifiers (AMPA, AMPB). In addition to windings (W1, W2) for input signal t...
|
|
WO/1996/037952A1 |
A phase shifting circuit that may be used as part of a quadrature clock generator. The phase shifting circuit comprises a triangle wave generator coupled to receive an input reference signal. The triangle wave generator outputs a pair of...
|
|
WO/1996/036112A1 |
An isolating circuit for isolating a telephone set from an exchange passes a D.C. feed current but prevents A.C. currents over the range of operating frequencies of the equipment, typically about 300 Hz to 4 KHz. The circuit comprises a ...
|
|
WO/1996/027238A1 |
A current mirror for use with a transconductor is disclosed. The current mirror includes an input resistor which changes an input current to a voltage, an output resistor having a value which is scaled with respect to the input resistor,...
|
|
WO/1996/027235A1 |
An active termination resistor is provided within a feedback loop circuit thus advantageously increasing the stability of the feedback loop circuit. In particular, the active termination resistor traces the impedance of the feedback loop...
|
|
WO/1996/027237A1 |
A programmable analog circuit apparatus receives a differential analog input signal and provides a processed differential analog output signal. The programmable analog circuit apparatus includes a first input transconductor, a differenti...
|
|
WO/1996/021969A1 |
A tuning circuit which has a wide tuning bandwidth. The tuning bandwidth or the tuning frequency can be easily changed. The tuning circuit (1) is imposed of two cascade-connected tuning amplifier sections (2 and 3). Each of the sections ...
|
|
WO/1996/021970A1 |
A tuning circuit which has a wide tuning bandwidth. The tuning bandwidth of the tuning frequency can be easily changed. The tuning circuit (1) is composed of two cascade-connected tuning amplifier sections (2 and 3). Each of the sections...
|
|
WO/1996/019868A1 |
A BiCMOS digital delay chain includes two signal paths coupled between an input terminal and an output terminal. The first signal path has two CMOS inverters coupled in series, while the second path has one CMOS inverter coupled to a BiN...
|
|
WO/1996/018239A2 |
In order to avoid signal reflections, a transmission line (3) connected to an electronic circuit (4) is terminated by a terminating impedance (5). The value of the terminating impedance (5) is to match in the best possible way in the fre...
|
|
WO/1996/016494A1 |
The invention includes a terminating circuit or network (4) which is connected to a signal transmission medium in the form of one or two conductors or lines (2, 3) on which information-carrying signals in the form of voltage pulses can b...
|
|
WO/1996/016471A1 |
An oscillator (10) including two gm/C stages (12, 14) each including a differential pair of transistors (Q1, Q2; Q3, Q4), a capacitor (C3, C4), and a tunable current source (16, 26). The gm/C stages include a pair of input terminals (18,...
|
|
WO/1996/013898A1 |
Disclosed are repetitive control systems (Fig. 2) and learning control systems (Fig. 4) using filters (24) composed of delay circuits (20) and having parameters resulting in a very high loop gain for only specific frequencies. This resul...
|
|
WO/1996/009693A1 |
An active damping circuit for an electromagnetic interference filter for a power factor correction circuit is provided which simulates a line damping impedance which actively varies according to the sensed line (22) current. The active d...
|
|
WO/1996/002975A1 |
A tunable filter (25) is described for use in loop control circuits. The filter (25) has a time constant which is determined by a resistor (40) and a capacitor. The capacitor is simulated by the series combination of an impedance convert...
|
|
WO/1996/001008A1 |
A termination device is disclosed. The termination device is comprised of a buffer and a matching device. The buffer has an input and an output. The input of the buffer is connected to the transmission line, while the output is connected...
|
|
WO/1995/034913A1 |
A new type of field effect transistors, bootstrapped gate field effect transistors ("BGFETs") for providing variable resistance is disclosed. A BGFET includes source (420), drain (425), gate (430), and channel regions (405). The gate reg...
|
|
WO/1995/034953A1 |
A tuned amplifier that can be produced easily in an integrated circuit and by which the tuning frequency and the maximum damping are arbitrarily adjusted without mutual interference. The tuned amplifier is constituted of two phase shifti...
|
|
WO/1995/032547A1 |
An impedance matching, reducing, or buffering circuit for permitting smooth signal flow from a first transmission medium to a second transmission medium. The circuit provides a first node adapted for coupling to the first transmission me...
|
|
WO/1995/031038A1 |
A quasi-passive switched capacitor delay line includes a predetermined number of passive switched capacitor delay stages (Q1/Q2/C1, Q3/Q4/C2, Q5/Q6/C3, Q7/Q8/C4) and an amplifier (A1). The control terminal of each first transistor (Q1, Q...
|
|
WO/1995/029532A1 |
A low capacitance impedance emulator suitable for active conductor termination. This impedance emulator includes an emulating FET (12) and a control circuit (16) coupled to the gate of the emulating FET for maintaining the FET in a linea...
|
|
WO/1995/027344A1 |
The present invention relates to an electronic filter (4) between a DC power supply (3) and a data transfer network (1) or the like, the data transfer network (1) utilizing a single pair of conductors (1a, 1b) as a transfer route for bot...
|
|
WO/1995/026076A1 |
The invention relates to a connecting arrangement (50, 60) comprising a number of NMOS transistors that can be activated or deactivated by means of a control voltage (67), serving as a control signal, connected to the gate terminals of t...
|
|
WO/1995/024712A2 |
An adjustable resistance device comprising a first parallel arrangement (1) of a first resistor and a first positive-feedback transconductor is provided with a control circuit (20) for controlling the controllable resistance section in t...
|
|
WO/1995/024089A2 |
A termination network in an integrated circuit and a control circuit for controlling the impedance of the termination network is described. The termination network comprises transistors for matching the impedance of the termination netwo...
|
|
WO/1995/022198A1 |
An amplifier circuit provides wide bandwidth low noise performance by minimizing the effect of a pole created by the feedback resistor (424) and the capacitance of the input device, such as a photodiode (10). This is accomplished by shif...
|
|
WO/1995/022200A1 |
A voltage-controlled phase shift apparatus having an unlimited range for producing an output signal that varies in phase from an input signal by a predetermined phase difference. The phase shift apparatus includes a first delay circuit c...
|
