Abstract:
Input signals are coupled in common to the emitter electrodes of a pair of transistors arranged in a differential amplifier configuration, and are synchronously detected by switching signals coupled to the respective transistor base electrodes. The coupling to the emitter electrodes is through an amplifier transistor similar to that disclosed in U.S. Pat. No. 3,531,730, but exhibiting characteristics analagous to a common-base amplifier ''''folded around'''' ground potential as herein described.
Abstract:
A switching circuit, dependent solely on the value of fixed impedances and supplied direct current voltages, blanks the picture and mutes the sound of a television receiver during its channel selection tuning, either manually or automatically by remote control. The circuit is a modification of that described in our concurrently filed application entitled ''''VIDEO BLANKING AND SOUND MUTING CIRCUIT'''' (Ser. No. 112,178), in its rearrangement of resistor components and utilization of a pair of grounded switches.
Abstract translation:开关电路仅依赖于固定阻抗值和提供的直流电压,在频道选择调谐期间对电视接收机的声音进行空白并使其静音,手动或通过遥控器自动进行。 该电路是在我们同时提出的题为“VIDEO BLANKING AND SOUND MUTING CIRCUIT”(系列号112,178)的申请中描述的电路的改型,其中电阻器组件的重新布置和一对接地开关的利用。
Abstract:
Method includes scribing a circumferential cut on the glass exhaust tubulation of an electron tube, positioning the tubulation inside a close-fitting, closed chamber, cracking the tubulation on the cut, and slowly filling the chamber and tube with gas at a low rate of inflow to atmospheric pressure. Apparatus includes a close-fitting, closed chamber having a flexible portion that seals over the tubulation, a solid portion that closely fits over the tubulation, and a means to fill the tube and chamber with gas at a low rate of inflow to atmospheric pressure.
Abstract:
A heat conducting support on which an electrical component can be mounted so as to conduct heat generated by the component away from the component. The support includes a substrate of good heat conducting material and a diamond body embedded in the substrate with a surface of the diamond body being flush with a surface of the substrate. A metal film extends over the surface of the substrate and the diamond body and is strongly adhered to the substrate. An electrical component can be mounted on and secured to the metal film over the diamond body. The support is formed by placing the diamond body on the surface of a plate of the material of the substrate and coating the surface of the plate around the diamond body with additional material of the substrate. The coating contacts the peripheral edge of the diamond body to secure the diamond body to the substrate and extends to the surface of the diamond body. A metal film can then be deposited on the surface of the diamond body and the coating.
Abstract:
A pair of load impedances, and a plurality of signal controlled means, each such means supplying a current to one or the other of the load impedances depending upon the binary value represented by the signal controlling that means. By judicious choice of the respective values of the load impedances, the respective voltages developed across them is made to represent different logic functions, which may be completely unrelated to one another, of the input signals. The signal controlling a means may be an external signal or may be a feedback signal produced internally of the circuit.
Abstract:
A decoder employing switches such as metal oxide semiconductor (MOS) field-effect devices and diodes in a number of series circuits, each such circuit forming a ring. In the absence of strobe and strobe signals, one diode in one series circuit connects the decoder output terminal to ground. In the presence of strobe and strobe signals, the output terminal is disconnected from ground and, if the control voltages applied to certain of the devices in certain of the series circuits all represent the desired binary value, the strobe signal is conducted via certain of the devices in said one series path to said output terminal.
Abstract:
A voltage comparator utilizing complementary MOS techniques. The comparator circuit includes an inverter network and switching circuitry for selectively supplying reference or monitored signals to the inverter network. A signal representative of the relationship between the reference and monitored signals is produced by the inverter network.
Abstract:
A NEW MAGNETIC MATERIAL COMPRISES THE MOLAR FORMULA MM''2Z3+YX1- WHERE: X CONSISTS ESSENTIALLY OF AT LEAST ONE OF THE CHALCOGENIDES, S2-,SE2-,TE2-;X CONSISTS ESSENTIALLY OF AT LEAST ONE OF THE HALIDES, C1-,BR-,I-; M CONSISTS ESSENTIALLY OD COPPER IONS; M'' CONSISTS ESSENTIALLY OF CHROMIUM IONS; AND Y IS A NUMBER FROM ZERO TO LESS THAN 1. VALUES OF Y EXITS ABOVE WHICH THE MATERIAL BEHAVES AS A CONDUCTOR AND AT OR BELOW WHICH THE MATERIAL BEHAVES AS A SEMICONDUCTOR. THE COMPOSITIONS ARE GENERALLY IN THE SPINEL CRYSTAL CLASS AND ARE USEFUL IN MAGNETIC AND SEMICONDUCTOR DEVICES. A METHOD OF PREPARING THE ABOVE MATERIAL COMPRISES FIRST MIXING THE STARTING MATERIALS COPPER HALIDE, CHROMIUM, CHALCOGEN AND COPPER IN THE MOLAR RATIOS TO GIVE THE DESIRED PRODUCT. THEN PRESSED PELLETS OF THE MIXTURE ARE FORMED AND PLACED IN EVACUTATED QUARTZ TUBES. THE PELLETS ARE THEN FIRED FOR AT LEAST 10 HOURS AT 700-800*C.
Abstract:
A computer system is disclosed which includes means operative during the execution of a program to record the addresses of all of the branch instructions which result in the taking of the branch path specified by the instruction. The record of addresses is useful in program debugging procedures for determining the place in a program at which an error occurred.
Abstract:
A color reference signal is inserted during the vertical blanking interval of a transmitted television waveform, for utilization by the described apparatus in automatically setting the hue and saturation of the diaplay of an NTSC or PAL receiver. The apparatus responds to the transmitted burst signal to lock the frequency of the sub-carrier oscillator of the receiver and to the transmitted reference signal to adjust the phase of its oscillations.