摘要:
An asymmetric filter combination (F1, F2) for the transmission of a binary data stream (st) between a transmitter (T) and a receiver (R) is disclosed which includes a first filter (F1) at the transmitter end having an FIR structure and a second filter (F2) at the receiver end having an IIR structure, with the combination of the first and second filters (F1, F2) yielding a common transfer function which satisfies both the Nyquist criterion and the noise-matching criterion.
摘要:
A specimen slide (1) for a microscope, camera or other such observation device has a receiving area (2) for cell or tissue samples or other such organic material and a smaller observation area (3) for the organic material. The specimen slide (1) at least in the observation area is made of transparent material. Within the receiving area (2) the specimen slide (1) is provided with thin-film sensors (6 to 12) adjacent to the observation area (3) for measuring physiological parameters of the organic material. The chemical and physical characteristics of the organic material under observation can be picked up by the sensors while it is observed, for example under a microscope. Sensors of differing types can be provided, such as interdigital capacitors (6), NO sensors (8), O.sub.2 sensors (9) or temperature sensors (11), thereby making available important physiological measurement and/or control parameters.
摘要:
A DC/DC converter including a switching transistor, an inductor, a smoothing capacitor, and a switching element which are connected so as to convert an input voltage U.sub.E to an output voltage U.sub.A greater or less than the input voltage U.sub.E. The current through the inductor can be measured by providing a comparator having a first input connected to the switching transistor, and a second input connected to a reference transistor and a reference current source so as to fix the switching threshold of the comparator at the second input.
摘要:
Bus system (1, 2, 3) for a television signal processing device for transferring video data (d8) of at least one video data source (8) and/or supplementary data (d10) of one or more supplementary-data sources (10) between a transmitter (1) and a receiver (3) by means of a bus (2), wherein at the transmitter end (1), a single data stream (d2) for the bus (2) is formed from the video (d8) and/or supplementary data (d10) by means of an interface circuit (4). The interface circuit (4) combines the video and/or supplementary data, source by source, into blocks (db; db1, db2) following each other successively in time and containing identification data (dk; sk, ik) for start and end, or start and length, and content identification, and transfers the blocks serially.
摘要:
There is disclosed a process for producing electronic devices from a semiconductor wafer. The process comprises forming separation regions with a spatial pattern on the semiconductor wafer to provide separation between electronic devices, and depositing a conductive contact layer on the wafer and patterning the contact layer in such a way that conductive terminals extend from the front side of the wafer over at least part of the cross section of the patterned separation regions. The terminals are bared by removing material of the wafer in the semiconductor regions starting from the backside of the wafer, and the terminals of adjacent electronic devices are separated.
摘要:
An interconnecting structure for a semiconductor integrated circuit and a method for manufacturing said interconnecting structure. The interconnecting structure comprises a top layer, a bottom layer, and a dielectric isolation layer. The top layer completely covers and encloses the bottom layer. The dielectric isolation layer is disposed between the top layer and the bottom layer. At least one contact opening is formed through the top layer of the structure, thereby exposing a selected region of said bottom layer. A contact is formed on the selected region of the bottom layer.
摘要:
A filter combination for sampling rate conversion is disclosed comprising a series combination of: an input low-pass filter (1) whose attenuation characteristic (tp1) has at least one first attenuation value (a1) in the vicinity of one-half and 1.5 times the frequency of a digitization clock (f1); a time-invariant interpolation filter (2) for increasing the number of samples from that of the first data sequence (d1) by an integral factor whose attenuation characteristic (tp2) has at least one second attenuation value (a2) in the vicinity of the frequency of the digitization clock (f1) and essentially at least one third attenuation value (a3) in the region between one-half and 1.5 times the frequency of the digitization clock; and a time-varying interpolation filter (3) for interpolating a data sequence (d5) provided at the output of the time-invariant interpolation filter (2), the attenuation characteristic (tp3) of the time-varying interpolation filter (3) having at least one fourth attenuation value (a4) in the vicinity of twice the frequency of the digitization clock (f1).
摘要:
A measuring device for measuring or examining physiological parameters on biocomponents includes an FET sensor 5 whose electrical protective layer 12 is roughened or has a structured coating 15. The structuring of the active sensor contact surface 12 is adapted to the outer contour and topography of the biocomponent in question, so that a better possibility is available for anchoring the biocomponents to the contact surface 24 forming the FET protective layer of the sensor 5.
摘要:
A process is disclosed for fabricating a device with a cavity formed at one end thereof. A body is provided with a depression, and mask layer is applied to the surface of the body and the depression, the mask layer having a lower etch rate than the body. Near the depression, an opening is formed in the mask layer. Starting from the opening, the body is subjected to an isotropic etching process to form the cavity below the mask layer, with the mask layer being essentially preserved and forming in the area of the depression a structure extending into the cavity.
摘要:
A process for forming adjacent moats or holes in an electrically non-insulating substrate wherein an electrically insulating masking layer is deposited on the substrate. To form two adjacent moats or holes, the masking layer has an opening whose width is chosen so that it extends over a part of the overall width of the two moats or holes to be formed, and whose shape corresponds to the shape of the moats or holes to be formed. The surface of the masked substrate is then subjected to an anodic oxidation, with the oxidation voltage chosen to be so high that two adjacent moats or holes are formed per opening in the masking layer.