Abstract: An interface for effecting the direct transfer of message segments between an intelligent switch and a microcomputer includes an input buffer, an output buffer and a memory for storing address to be associated with the message segments traversing the buffers.

Abstract: In order to expand or increase the number of lines of a communications system, this disclosure enables connection of one PBX switching system to another by connecting the switching networks to junctors which establish a multichannel transmission link between the first PBX module and a second module of similar format. The junctor is treated internally in each PBX module as a line or trunk port and whenever an extension number which is not contained in the numbering plan of the individual module is dialed, the control unit of the PBX will direct that call to any free junctor. The complete dialed number is transmitted from the originating module via the junctor to a receiving junctor at the other switching system.

Abstract: Methods and apparatus are provided for efficiently processing vacuum tubes containing microchannel plate electron multipliers. The vacuum tube body containing the microchannel plate is thermally treated under vacuum prior to sealing the tube faceplates by means of reversible melted metal seals.

Abstract: 3. A radar system comprising a continuous wave transmitter which transmits a carrier frequency signal, a relatively low frequency source coupled to the transmitter for phase modulating the carrier signal, a receiver for receiving an echo signal and coupled to said transmitter, said receiver including a mixer for beating the echo signal with the carrier signal, means for separating and selectively amplifying the first and fourth harmonic components of the mixer output signal, and means for comparing said components.

Abstract: For the handling, especially sorting, of devices which at least partly consist of a ferromagnetic material, at least one switchable electromagnet in a fixed position produces an electromagnetic field which penetrates a first steady magnetic field and is dimensioned and timely switched according to the special handling process to be performed.

Abstract: This invention relates to a bucket brigade circuit or delay line wherein there is provided frequency-dependent compensation of the signal attenuation after n-stages of the circuit. The compensation circuit contains a differential amplifier and a transferring circuit adding the frequency dependent signal loss to the bucket brigade line signal. The differential amplifier samples the signal of two adjacent stages controlled by the same clock signal phase.

Abstract: This invention relates to a bucket brigade circuit or delay line having a compensation circuit for the loss of the dc level after n stages. The compensation circuit contains a differential amplifer and a transferring circuit adding the dc level loss to the bucket brigade line dc level. The differential amplifier samples the signals of a line stage close to the input and a line stage far from the input which are both controlled by the same signal phase.

Abstract: An apparatus is provided for detecting digital pulses or pulse intervals and any combination thereof. Logic means is provided wherein the complement of the interval to be measured is loaded into a digital counter, and certain states of this counter are decoded to set and reset, respectively, an in-bin flip-flop. Operation is initiated when a digital input is received. If the interval to be measured terminates while the in-bin flip-flop is set, an output is generated indicating that a "hit" has been scored and the parameters of the measurement can be read out. Code words stored in a memory provide the specific parameters of measurement, and particular portions of the code words are employed depending on the desired mode of operation.

Abstract: The invention provides for the digital control of the operating functions in a radio or T.V. receiver using sensor electrodes in place of mechanical control devices. A sensor control panel is provided for directly setting an electronic stepping circuit to a desired condition. The electronic stepping circuit is particularly adaptable for receiving sequential remote control signals and thereby greatly reduces the cost of adapting a receiver for remote control operation.

Abstract: This relates to a monolithically integrable circuit for providing an effective constant voltage to automobile instruments; fuel, temperature, etc. The standard bi-metallic switch is replaced by a power amplifier which is turned on and off by a Schmidt trigger circuit. A capacitor charge/discharge circuit is charged by a current source, the output of which varies with output voltage. When the switch level of the Schmidt trigger is reached, the power amplifier is turned off and the output grounded via the instruments. This turns off the charging source and turns on a discharging source. In this manner, the on/off ratio of the output is varied to supply an effective constant voltage to the instruments.

Abstract: An optical waveguide coupler made by integrated optical circuit techniques is employed to direct light from a document to be copied to a line of photosensors of a large scale integrated photosensor module. A plurality of optical waveguides are spaced widely along the document and closely along the photosensor array. Spaced channels are formed in a higher refractive index glass layer on a glass substrate. The higher index layer glass provides the plurality of optical waveguides separated by the channels.

Abstract: A two-way valve for a brake booster functions first to interrupt a vacuum connection between two chambers when displaced by an actuating rod and second to permit atmosphere to enter into one of the two chambers to provide the booster action. In such known arrangements there is a disadvantage that the brake actuation requires considerable lost brake pedal travel. According to the present invention this disadvantage is overcome by arranging a valve body coaxial of and axially displaced on the actuating rod and by coupling the actuating rod to the valve body by means of a travel-transmission arrangement which provides for a larger displacement travel of the valve body relative to the travel of the actuating rod.

Abstract: A centrifugal pump with its impeller arranged beside the main media current in the pump housing (Vortex impeller pump) is provided with an inner part of resilient material which part forms the inlet of the pump. When a certain maximum volume goes into the pumphousing, the inlet edges fold inwards thus diminishing the inlet area and preventing the volume current from increasing over a certain value.

Abstract: A buoy is towed by a submerged submarine through means of an electro-mechanical cable. A cable reel is disposed in the buoy to store an inflatable buoyant cable having a pressure accumulator containing a medium under a given pressure attached to one end of the buoyant cable adjacent the outer surface of the buoy. The other end of the buoyant cable is attached to the cable reel. Through slip rings connected to the cable reel and a conductor connected between the slip rings and the electro-mechanical cable radio communication with a submerged submarine is possible employing the buoyant cable when it is deployed and inflated. An arrangement in the buoy associated with the buoyant cable and the cable reel assists in deploying and retrieving the buoyant cable with the deploying and retrieving of the buoyant cable being under the control of sea pressure acting on the buoyant cable.

Abstract: This antenna arrangement includes a primary buoy connected to the submarine through a first electro-mechanical cable, a secondary buoy carrying an antenna connected to the primary buoy by a second electro-mechanical cable and a system contained within the primary buoy connected to the second cable to automatically control the deploying and the retrieving of the secondary buoy and to provide electrical continuity between the first and second cables. The deployment of the secondary buoy is produced primarily by hydrodynamic forces rather than only hydrostatic forces.

Abstract: Firing electron emissive compounds of barium tantalate in excess of 1600.degree.C in controlled vacuum conditions removes elemental barium from the compound. The method provides improved fluorescent lamp quality by yielding substantially less end discoloration over the life of the lamps.

Abstract: This relates to stabilized platforms for directive ship mounted antennas for satellite communication. The invention further relates to platforms comprising an antenna dish with elevation and azimuth control means, as well as counterweight means, being supported in a universal joint bearing. The main feature of the invention is that the platform includes a small mass system which is mechanically coupled to the platform in a damped manner, thereby stabilizing or damping the movements of the antenna caused by movements (roll/pitch) of the ship.

Abstract: A wire skinning and wrapping tool which is able to perform two successive skinning and wrapping operations includes a bit able to rotate and to slide to and fro in a hollow sleeve. During each skinning operation the bit moves in a forward direction away from a cut-out portion which is located at the base of the sleeve and through which the insulated wire is fed. After each wrapping operation the bit moves in a backward direction while it rotates over an angle of 180.degree. together with the sleeve. Prior to the first skinning operation the wire is fed through the cut-out portion perpendicularly to the sliding direction and is pushed forward by the bit during the skinning operation. Prior to the second skinning operation the insulated wire which extends from the wire wrapped connections to the wire feeding means via the hollow sleeve is cut at the wire feeding place.

Abstract: In a radio or television receiver containing an automatic station finder with a digital counter, a clock generator, and a digital-to-analog converter forming the tuning voltage for the varactors, a recall memory consisting of two series-connected parallel memories is connected in parallel with the digital counter. At a stop signal from the automatic station finder the first parallel memory records the instantaneous count of the digital counter; at an automatic-station-finding start signal the second parallel memory, to which the parallel input of the digital counter is connected, records the contents of the first parallel memory.

Abstract: An FM receiver has a first pair of signal mixers for receiving an RF signal and a local oscillator for providing a signal to said mixers at a frequency near the center frequency of the received signal. A phase shifter shifts the phase of the local oscillator signal to one mixer by 90.degree.. The outputs of the first pair of mixers are connected to low pass filters having cut-off frequencies equal to approximately one-half the bandwidth of the received signals. A second pair of signal mixers receive the filtered signals and an oscillator signal at a frequency equal to at least twice the cut-off frequency of the low pass filters. The oscillator signal to one of the mixers is phase shifted 90.degree.. The outputs of said second pair of mixers are added together, amplified, limited and thereafter demodulated to provide an audio signal. Automatic frequency control is also provided for the local oscillator.