Silicon Line Gmbh

Siemens Healthcare Gmbh

Martin Groepl

Holger Hoeltke

Thomas Suttorp

Edgar Goederer

Edgar Göderer

Florian Jansen

Thomas Blon

Ols Hidri

Holger Fritsche

Enabling Low Frequency Periodic Signalling over an optical link with a circuit arrangement and method for controlling a light-emitting component, including: monitoring a differential input for the presence of an electrical idle state by an IDLE detector; triggering a time delay block by the IDLE detector when the electrical idle state at the differential input is interrupted or resumed; detecting whether the differential input is driven by a Low Frequency Periodic Signalling or by a Super Speed/Enhanced Super Speed signalling by a signal type detector; making a decision whether the signalling is to be transmitted by a decision circuit; an input stage connected to the decision circuit; and driving the light-emitting component by an output stage.

Circuit arrangement and corresponding method

In order to further develop a device () for coupling optical signals into at least one waveguide (), wherein the device () comprises at least one electro-optical converter () which sends out the optical signals in the direction of the axis or of the core () of the waveguide (), in such a way that active alignment of the waveguide () is not necessary, it is proposed The corresponding is true for a device () for decoupling optical signals from at least one waveguide ().

Device for coupling and/or decoupling optical signals

A device for coupling optical signals into at least one waveguide having at least one electro-optical converter, which sends out the optical signals in the direction of the axis or of the core of the waveguide, in such a way that active alignment of the waveguide is not necessary. The electro-optical converter is incorporated, in particular embedded, in at least one send-site optical subassembly, the send-site optical subassembly has at least one guiding channel for aligning the waveguide with respect to the electro-optical converter, in particular relative to the output port or to the active surface of the electro-optical converter, and at least one extension is assigned to the send-site optical subassembly, in particular to the guiding channel, the extension being provided for aligning the waveguide with respect to the guiding channel. Also, a device for decoupling optical signals from at least one waveguide having the features noted above.

Device for incoupling and/or outcoupling optical signals

An X-ray detector includes an N-channel digital-analogue converter controllable with K+L bits. In an embodiment, the digital-analogue converter includes a first voltage source to provide a plurality of first voltage values at tapping points; and a switch unit with N switch matrices, 2inputs of the switch matrices being electrically conductively connected to 2tapping points of the first voltage source. The digital-analogue converter also includes a second voltage source including N subunits. The X-ray detector further includes a discriminator unit including N comparators, at least one input of the comparators being electrically conductively connected to the associated output of the switch matrix and/or to the associated output of the subunit, so that the associated first voltage value and the associated second voltage value are associable with each comparator. A signal of an output of a pre-amplifier, and the associated first and second voltage values are comparable in the comparator.

Digital-analogue converter for multi-threshold counters with partitioning of the bits between resistor ladder and comparator

An x-ray detector includes a substrate including an electrically conductive connection between a read-out contact in the region of the top side of the substrate and an input of a pre-amplifier in an active layer of an integrated circuit. A first electrically conductive connection is provided between the read-out contact and a second electrically conductive connection. A surface of a first light protection is relatively larger than a surface of a light-permeable region of the first light protection. The second electrically conductive connection is provided within a second projection of the surface of the light-permeable region along the surface normal and below the second light protection. A third electrically conductive connection between the second electrically conductive connection and the pre-amplifier is provided below the second light protection. The input of the pre-amplifier is protected against direct incidence of light.

X-ray detector having a capacitance-optimized light-tight pad structure

A direct-conversion counting x-ray detector includes an analog front end. The analog front end is one-stage. The one stage includes a preamplifier and a pulse shaping unit.

One-stage preamplifier with intrinsic pulse shaping

A device for coupling optical signals into at least one waveguide, wherein the device comprises at least one send-site circuit, which based on incoming signals from send-site terminal contacts actuates at least one electro-optical converter, which sends out the optical signals in the direction of the axis of the waveguide, in such a way that the manufacturing expenses are low. The electro-optical converter is incorporated, in particular embedded, in at least one send-site receptacle/alignment module, the send-site receptacle/alignment module comprises at least one groove- or trough-shaped depression for aligning the waveguide in relation to the electro-optical converter, and the send-site receptacle/alignment module is, in an essentially form-fit and/or force-fit manner, incorporated, in particular fitted, in a recess provided in a send-site substrate. The corresponding is true for a device for decoupling optical signals from at least one waveguide.

In order to further develop a device for coupling optical signals into at least one waveguide, wherein the device comprises at least one send-site circuit, which based on incoming signals from send-site terminal contacts actuates at least one electro-optical converter, which sends out the optical signals in the direction of the axis of the waveguide, in such a way that a corresponding miniaturization of the coupling device is enabled at low optical losses while at the same time the manufacturing expenses are to be low, it is proposed that the send-site circuit is arranged essentially in the plane of a send-site substrate comprising the send-site terminal contacts. The corresponding is true for a device for decoupling optical signals from at least one waveguide.

In order to further develop a circuit arrangement (CR; CR') for receiving optical signals (SI) from at least one optical guide (GU), said circuit arrangement (CR; CR&#x2032;) comprising:

Circuit arrangement and method for receiving optical signals

In order to further develop a circuit arrangement provided for coding and/or decoding a data stream, in particular of up to 24-bit-wide R[ed]G[reen]B[lue] video signals, and a corresponding method in such way that an efficient DC-balanced coding and/or decoding is possible, in particular with the lowest possible overheads,

Circuit arrangement and method for coding and/or decoding

In order to be able to receive any digital optical signals in the bandwidth range from zero bits per second to the high Gbits/second range with as little circuit complexity as possible and to be able to process said signals with the least possible energy requirement for reprocessing, the invention proposes a circuit arrangement as well as a method for receiving digital optical signals by means of at least one light-receiving component connected upstream of at least one signal input port, particularly by means of at least one photodiode, wherein the unipolar current signal coming from the light-receiving component through the signal input port is transformed into a bipolar current signal by means of a compensation current provided by at least one current source, the value of said current being defined by means of at least one digital register.

Circuit arrangement and method for receiving digital optical signals

Circuit arrangement and method for transmitting signals

In order to further develop a circuit arrangement or circuit, in particular driver circuit, and a method for controlling at least one light-emitting component, in particular at least one electro-optical transducer, for example at least one light-emitting diode (LED) or electroluminescent diode or at least one laser, such as at least one semiconductor laser, by switching at least one switching element at least between a first switching position and a second switching position, at least one further circuit component is switched to active or switched on in the second switching position, so that current drain and output resistance are as low as possible, so that the highest possible frequency or switching speed as well as the highest possible output voltage for the light-emitting component can be achieved, it is proposed that the light-emitting component is controlled by varying its operating voltage.

Circuit and method for controlling light-emitting components

Circuit arrangement or circuit, in particular driver circuit, and a method for controlling at least one light-emitting component, such as an electro-optical transducer, a light-emitting diode (LED), an electroluminescent diode, a laser, or a semiconductor laser, by switching a switching element between a first switching position and a second switching position, and the voltage supply is effected by a supply element, such as a voltage source or a current source supported by a decoupling capacitor on the output side, so that current drain and output resistance are as low as possible, so that the highest possible frequency or switching speed as well as the highest possible output voltage for the light-emitting component can be achieved, the light-emitting component is controlled by varying its operating voltage, in particular by switching between the switching positions, and the first and second switching positions are of low impedance for the operating frequency.

For providing circuit arrangement and method for transmitting signals from a data source to a data sink, the signals being TMDS encoded, the driver circuit is supplied by a connection interface, connected upstream, assigned to data source, with supply voltage, electrical TMDS encoded signals are electro-optically converted by an LED connected downstream of the driver circuit and coupled into an optical fiber as light supplied with TMDS encoded signals, the direct current portion supplied from TMDS transmitter to connection interface, to data source, is converted by driver circuit to a modulated signal current for controlling LED. Light supplied with TMDS encoded signals decoupled out from optical fiber by light-absorbing element, opto-electrically converted and supplied to transimpedance converter circuit connected downstream of light-absorbing element and upstream of connection interface assigned to data sink, transimpedance converter circuit being supplied by direct voltage portion being applied to differential pair of wires.

Growing community of inventors

Sonthofen Oberallgaeu, Germany

Martin Groepl