摘要:
In order to solve the problem of increase in circuit scale and increase in power consumption due to use of a DA converter, a semiconductor integrated circuit comprises a signal amplifier 2, 10 capable of switching of a gain to 1 or 2, an arithmetic processor 7, 9 for performing a subtraction process of a reference voltage from an input signal to output a result thereof or for outputting the input signal without performing the subtraction process, a switch 8 whose one switch terminal is connected to a signal input terminal, whose other switch terminal is connected to an output side of sample hold circuits 5, 6, and whose common terminal is connected to an input side of the arithmetic processor, a comparator 3 for comparing an output from the signal amplifier with the reference voltage to binarize the output, and a switch 11 for connecting an output side of the signal amplifier to an input side of the sample hold circuits, wherein the arithmetic processor carries out a changeover between the operation of performing the subtraction process of the reference voltage from the input signal to output the result and the operation of outputting the input signal without performing the subtraction process, based on an output from the comparator, thereby decreasing the circuit scale and substantially eliminating occurrence of an error.
摘要:
For raising the accuracy of analog multiplication, a gate-drain (G-D) connection point of transistor (Tr) whose gate-drain (G-D) are shorted and whose source is connected to ground potential is connected to a source of second Tr whose G-D are shorted, a first input signal current source is connected to a G-D connection point of the second Tr, a G-D connection point of third Tr whose G-D are shorted and whose source is connected to the ground potential is connected to a source of fourth Tr whose G-D are shorted, a second input signal current source is connected to a G-D connection point of the fourth Tr, the G-D connection points of the second and fourth Tr's are connected to first and second capacitors respectively, outputs of the first and second capacitors are connected to each other and to a gate of fifth Tr to form a floating point, a source of the fifth Tr is connected to the ground potential, and a drain current of the fifth Tr is an operation output.
摘要:
A gate valve for a thin film forming apparatus. The gate valve includes two adjoining low-pressure chambers and a wall separating the two chambers. The wall includes an aperture and a thin plate for covering the aperture. The thin plate is movable in a direction substantially parallel to the plate surface. The gate valve further includes a voltage supply for applying a direct current between the thin plate and the wall.
摘要:
A semiconductor circuit assembly is capable of accurately storing a plurality of analog or multi-valued data using circuitry having a small surface area. The circuit assembly includes a first circuit provided in the form of a target memory cell device comprising memory cells which conduct the writing and storage of analog signals. The first circuit has output terminals for outputting stored values to the exterior as voltage signals. Mechanisms supply at least two index voltages. A second circuit performs the function of halting the writing of the analog signals when the output signal at the first circuit output terminals reaches a value representing a desired voltage plus the difference between the two index voltages.
摘要:
A thin film transistor device with its leakage current being controlled is provided. With such a thin film transistor device incorporated, a liquid crystal display apparatus presents a high-contrast image at a reduced power consumption. The thin film transistor is formed on an insulating substrate. The gate electrode of the transistor is electrically floating gate electrode, which is capacitance coupled to one or more input electrodes. The liquid crystal display apparatus incorporates the thin film transistor in its switching element and/or driving circuit.
摘要:
The invention provides a semiconductor circuit which can fetch and store analog and multilevel data by using a simple circuit. The invention also provides a multilevel memory which can freely change the number of quantizing levels by using external signals. This semiconductor circuit comprises a first circuit which converts first signals into a group of quantized signals, a second circuit which converts the signal group into second multilevel signals, and structure which feeds back the second signals to the first circuit as first signals. The semiconductor circuit further has a structure to electrically separates at least one signal included in the signal group from the input of the second circuit, and structure which feeds back the second signals to the input of the second circuit instead of the signal previously separated.
摘要:
The present invention relates to a semiconductor integrated circuit. In greater detail, the present invention relates to a semiconductor integrated circuit which conducts calculations using a voltage adding function by means of capacity and threshold operations. The semiconductor integrated circuit in accordance with the present invention is characterized in that, in a circuit wherein the output of a first inverter circuit and the input of a second inverter circuit are connected at a first contact point, the output of the second inverter and the input of the first inverter are connected at a second contact point, and a means is provided for generating a difference in potential between the first contact point and the second contact point, an electrically floating electrode and a plurality of input electrodes, which are provided via capacity elements with this electrode, are provided, and a means is provided for in effect determining the difference in potential by means of the potentials applied to the input electrodes.
摘要:
A source follower circuit which operates at high speed and maintains low power consumption and which includes a pair of small, normally on, NMOS and PMOS transistors and a pair of large, normally off, NMOS and PMOS transistors. The two pairs of transistors are connected in parallel. In each pair of transistors the sources and the gates of the NMOS and PMOS transistors are connected to each other. Furthermore, the threshold voltages of the transistors must be set so that: large NMOS transistor voltage>small PMOS transistor voltage>small NMOS transistor voltage>large PMOS transistor voltage, or so that small PMOS transistor voltage>large NMOS transistor voltage>large PMOS transistor voltage>small NMOS transistor voltage.
摘要:
A plasma processing apparatus comprises: a first electrode connectable with a plasma generating power source; a second electrode capable of supporting a substrate to be subjected to a plasma-involving surface treatment; a third electrode enclosing a space between the first and second electrodes, all the electrodes being positioned in an evacuatable chamber; and potential control means for controlling the potential of the third electrode.
摘要:
A stream processing section (12) analyzes input stream data and, if the stream data includes a compressed/coded graphics object, decodes the graphics object line by line and writes the decoded graphics object into a graphics object buffer (14), and, if the stream data includes control information of a graphics object, writes the control information into a control information buffer (13). A graphics control section (15) renders a graphics object stored in the graphics object buffer (14) in a graphics plane (16) based on control information stored in the control information buffer (13). When a decoding error has occurred, the stream processing section (12) restarts decoding from the next or a subsequent line.