Abstract: A system for detecting metal targets located in a background environment such as the ground evaluates metal targets by processing components of signals at two or more different frequencies. A component of the received signal induced by the ground can be eliminated by subtracting signal components measured at two different frequencies. The received signal can be processed to account for changes in the background response with frequency. The type of an unknown target can be identified by processing background excluded components to produce data characterizing the target type.

Abstract: A slant post base mounting mechanism for a magnetic recording and reproducing apparatus includes a support for preventing movement of an adjusting screw, the support having an elastic member mounted on upper surface thereof and a plate spring formed with a clamp shaped, a v-type stopper having holes formed on an upper and a vertical surfaces thereof, respectively. Also, the plate spring includes a guide portion formed on a lower surface thereof, the guide portion being in contact with the protrusion of the slant post base in order to support the adjusting screw, and a slant portion formed at an end of the guide portion, the slant portion being movably inserted in a hole formed at a vertical surface of the V-type stopper.

Abstract: In order to increase the speed of the transfer of control data to an OSD circuit, and to eliminate "holes" in memory caused by the use of memory mapped registers, dual use is made of the serial data port of the OSD circuit to accomplish two distinct tasks, serial transfer of graphics data and serial transfer of the control data. The on-screen display apparatus includes an OSD circuit for generating an graphics signal for display on a display screen, a controller coupled to the OSD circuit, for controlling the OSD circuit, and a VRAM including a first area for storing graphics data and a second area for storing control data for the OSD circuit. The VRAM has a parallel input/output port coupled to the controller and a serial output port coupled to the OSD circuit, the serial output port conveys the graphics data from the first area of the VRAM to the OSD circuit for processing and display.

Abstract: A method of making an integral solder and plated cover for an electronic package is described which involves applying a corrosion resistant material onto a metal strip and a solderable material on the corrosion resistant material. A solder material is then roll clad over the solderable material after which it is stamped to covers which are then coated with gold.

Abstract: The invention relates to a method of determining the quality of an aluminized, luminescent screen 22 for a CRT 10. The luminescent screen 22 is disposed on an interior surface of a faceplate panel 12 with an aluminum layer 23 overlying the screen. The method includes the steps of: exposing the aluminum layer to ultraviolet radiation; and measuring the luminescence emitted by the screen through the aluminum layer.

Abstract: A room air conditioner designed to provide convenience in assembly and improve productivity by improving the structure of a wall portion for guiding and expelling conditioned air to a room. In the air conditioner, the wall portion includes a lower isolation and upper isolation wall portion. The lower isolation wall portion is molded and formed to provide a base wall, a lower barrier wall, a scroll section, a lower evaporator cover wall, a condensate gutter and a lower control unit chamber. The upper isolation wall portion is molded and formed to provide an upper barrier wall, an upper evaporator cover wall, a brace, and an upper control unit chamber. The lower and upper isolation wall portions are assembled together by latching structures.

Abstract: An electrical component includes a plurality of laminated layers 34, 44, 53, 64, of ferrite material, each layer having a conductive coil 40, 50, 58, 70 printed thereon. The conductive coil is formed by first printing a conductive sheet material 36, 48, 56, 68 on top of the ferrite layer, and then by exposing the conductive sheet material to a burst of laser energy focused in a predetermined pattern which cuts the coil out of the conductive sheet member.

Abstract: A dual bus, multi-function disk chassis is provided for use as an enclosure for hard disk drives that store audio or video. The chassis allows configuration of the disk drives for either one of two independent buses contained within the chassis without the need to re-cable any of the bus connections. These two buses are an audio bus for transmitting audio material and a video bus for transmitting video material. The chassis also contains multiple sets of edge connector pairs. Each of the edge connector pairs consists of a first edge connector for connection to the video bus and a second edge connector for connection to the audio bus. This arrangement allows the disk drives to be configured for audio or video storage depending on the orientation of the drive at insertion.

Abstract: An input signal (IN) and a threshold signal (Vt) are coupled to an output terminal (2) via the base-emitter paths of first (Q1) and second (Q2) transistors having respective collector electrodes connected to a supply voltage source (3). The output terminal (2) is coupled to a source of reference potential (4) via a first resistor (Re) and is coupled via a second resistor (Rd) to a selected plate of a capacitor (C1) that is connected between the collector and base electrodes of the second transistor (Q2). Circuit impedances are scaled such that Re>Rd>R1 wherein Re and Rd are the values of the first and second resistors, respectively, and R1 is a component of the output impedance of the threshold signal source (5).

Abstract: A method and system are provided for re-recording multi-track sound tracks onto two-channel sound recordings. A playback mechanism that has multiple speakers is provided for reproducing the sound from the multi-track sound track. The speakers are placed around a sound sensing unit that includes two microphones. Preferably, the sound sensing unit is a binaural head microphone. The sound detected by the binaural head microphone is recorded while the playback mechanism plays the multi-track sound track through the speakers. The binaural head microphone produces two channels of sound, so the recording produced is a two-channel recording regardless of how many tracks are on the original multi-track recording. The two signals generated by the binaural head microphone contain sound direction cues. When played back through headphones, the original sound is reproduced with the sound direction cues. Consequently, it sounds to a listener as if the listener is surrounded by speakers.

Abstract: A thin, compact, high power speaker for producing high volume sound alarm signals and for reproducing voice messages, and which may be installed in a limited space. The speaker of the invention includes a housing, a transducer mounted in the housing for generating sound signals, a high pressure chamber acoustically coupled to the transducer for receiving and compressing the sound signals from the transducer, a nozzle acoustically coupled to the high pressure chamber, a sound resonance/reflection passage acoustically coupled to the nozzle to amplify and reflect the sound signals, and a sound induction passage acoustically coupled to the resonance/reflection passage to direct the amplified and reflected sound signals through the front of the speaker into the surrounding space.

Abstract: A zero insertion force ball grid array socket comprises a base having an array of passages and contacts mounted therein. A carrier for receiving the ball grid array package and slidingly movable from a nonmated position to a mated position. The contacts having surface mount tails exposed in a perpendicular direction above the base and the balls of the ball grid array package being inspectable from the opposite side of the carrier receiving the ball grid array package thereon.

Abstract: A power stabilizer for maintaining a constant level of output power from a laser transmitter. The laser transmitter has a laser diode which produces a optical output which corresponds to the level of bias current received. In addition, the laser transmitter has a photodiode which produces a feedback signal which corresponds to the optical output power being produced by the laser diode. Furthermore, the power stabilizer consists of a digitally controlled potentiometer for producing a reference input signal and an op-amp for comparing the feedback signal and the reference input signal to produce a control signal to supply bias current.

Abstract: An apparatus and method for indicating an incoming call that generates a voltage signal with a value representative of the current drawn by operation of the device. A circuit monitors the voltage signal and generates a waiting for call state signal whenever the value of the voltage signal decreases from a first selected higher value to a first selected lower value for a first preselected period of time. An RF detection circuit monitors the status of the device's transmitter and generates a transmitter active status signal whenever RF appears for a selected period of time.

Abstract: A pluggable male terminator for use with a female ribbon cable connector. The terminator is comprised of three basic parts that can snap together. The three members are a shroud having openings in the top, a PC board with pins extending from opposed surfaces, and a cover with recesses therein. The pins are complementary in shape and size to the openings in the shroud and the recesses in the cover. Further, the pins are aligned with the openings in the shroud and the recesses. For assembly, the pins on the PC board are inserted into the recesses in the cover openings in the shroud and the parts are pushed together. The pins extending from the shroud are adapted to be inserted into recesses in the female ribbon cable connector.

Abstract: Method and device for molding integrated circuit packages using dambarless lead frames are disclosed. The mold dies and the lead frame have means for preventing resin leakage out of the mold dies during the package molding step. The leakage preventing means may comprise a tape put on the leads, an enlarged area sections provided on each lead and notches formed on each lead. The leakage preventing means may comprise projections formed on a lead pressing frame of one of the mold dies. In another embodiment, an auxiliary lead frame, which has a plurality of rectangular openings and will be fixed to a bottom mold die, is used as the resin leakage preventing means. When using the auxiliary lead frame, the dambarless lead frame is laid on the auxiliary lead frame and clamped by a top mold die. The enlarged area sections may be formed on the inner leads exclusively or on both the inner and outer leads.

Abstract: A system for locating an object, particularly a remote control, has a transmitter and a receiver, wherein the receiver has circuitry implementing power saving features. The receiver includes circuitry for turning off portions of the circuitry not essential for performing the current task. The receiver additionally only activates the wireless signal receiver portion of the circuitry periodically for short periods of time. The time of activation represents a small fraction of the operational time if the wireless signal receiver portion were to remain activated continuously.

Abstract: A liquid crystal projector for projecting an image on a screen includes a liquid crystal display (LCD) for displaying an image, a light source positioned behind the LCD for supplying light to project the image displayed on the LCD, a projection lens positioned in front of the LCD for focusing the light projected from the LCD onto the screen, and deflection means positioned between the LCD and the screen for deflecting the light focused through the projection lens to move the image position on the screen.