Abstract: A method and apparatus for increasing the capacity of a remote terminal cabinet and providing customer premise service interfaces to the remote cabinet which otherwise has insufficient additional physical slots to support such interfaces is described. The method features removing any protective covering from a space previously designated for but lacking a protection block equipment and installing in the space interface equipment. The installation includes securing the equipment physically in place and connecting the equipment for communications with a distribution service, such as T1 carrier service, at a first interface and a plurality of customer premise service interfaces, such as ISDN BRI interfaces, to customer premises lines at a second interface. The remainder of the remote cabinet communications is left unaffected.

Abstract: A method and apparatus for increasing the capacity of a remote terminal cabinet and providing ISDN Basic Rate Interfaces to the remote cabinet which otherwise has insufficient additional physical slots to support such ISDN Basic Rate Interfaces is described. The method features removing any protective covering from a space previously designated for but lacking a protection block equipment and installing in the space ISDN Basic Rate Interface equipment. The installation includes securing the equipment physically in place and connecting the equipment for communications with a T1 carrier service at a first interface and a plurality of ISDN BRI interfaces to customer premises lines at a second interface. The remainder of the remote cabinet communications is left unaffected.

Abstract: This is a coin sorting and counting apparatus for providing very accurate high throughput processing of heterogeneous coin mixtures. A rotating drum having parallel annular channels, each of which has equally spaced counterbores located around it is rotated within a vacuum plenum. A novel sensor coil constructed as a balanced transformer of four coils having rectangular geometries is used, in conjunction with a dual frequency excitation signal, to detect at least three electronic signatures for each coin, the signatures are detected by separating the frequency components in the output of the sensor coil and obtaining a peak value for the excursion of the high frequency response caused by passage of the coin, and width values corresponding to the time the excursion of the signal was above a predetermined threshold for both the high and low frequency responsive channels.

Abstract: This is a coin sorting and counting apparatus for providing very accurate high throughput processing of heterogeneous coin mixtures. A rotating drum having parallel annular channels, each of which has equally spaced counterbores located around it is rotated within a vacuum plenum. A novel sensor coil constructed as a balanced transformer of four coils having rectangular geometries is used, in conjunction with a dual frequency excitation signal, to detect at least three electronic signatures for each coin, the signatures are detected by separating the frequency components in the output of the sensor coil and obtaining a peak value for the excursion of the high frequency response caused by passage of the coin, and width values corresponding to the time the excursion of the signal was above a predetermined threshold for both the high and low frequency responsive channels.

Abstract: This is a coin sorting and counting apparatus for providing very accurate high throughput processing of heterogeneous coin mixtures. A rotating drum having parallel annular channels, each of which has equally spaced counterbores located around it is rotated within a vacuum plenum. A novel sensor coil contructed as a balanced transformer of four coils having rectangular geometries is used, in conjuction with a dual frequency excitation signal, to detect at least three electronic signatures for each coin, the signatures are detected by separating the frequency components in the output of the sensor coil and obtaining a peak value for the excursion of the high frequency response caused by passage of the coin, and width values corresponding to the time the excursion of the signal was above a predetermined threshold for both the high and low frequency responsive channels.

Abstract: An automatic amplifying and equalizing circuit for bipolar data signals has first and second voltage controlled amplifiers controlled by the output of a peak detector. The first amplifier provides even amplification of frequency spectrum components of the data signals while the second amplifier provides amplification of only higher frequency spectrum components of the data signals to compensate for losses of differing length transmission lines. Switches in filtering and frequency dependent circuits provide for operation at several data rates.

Abstract: A circuit for restoring and converting bipolar customer data signals into a pair of binary signals at a customer data frequency equal to or less than 250 KHz includes a PCM integrated circuit repeater for restoring and converting 1.544 MHz communication signals and transmission lines. Use of the high frequency repeater is enabled by a buffer amplifier connected in series with the input of a repeater amplifier and which has an input connected to a parallel resistance and capacitance network which is connected in series with an ALBO diode of the repeater for automatically inserting loss characteristics in the input signal so that the input signal has characteristics resembling losses of a signal passing through a maximum length transmission line. Fixed equalizer and amplification circuitry restores the original pulse signal magnitude and characteristics.

Abstract: An apparatus for locating passive interference sources by using a pair of different RF signals in conjunction with an acoustic signal to generate intermodulation products in metal-to-metal junctions. The acoustic tagging technique utilizes a focused, high power beam of acoustic energy to mechanically vibrate the suspected offending junction. This mechanical vibration causes the level of intermodulation products that are generated in the junction to become amplitude modulated at the frequency of the acoustic illumination. The detection of the AM sidebands with a low noise RF receiver that is tuned to a particular intermodulated component, permits the offending junction to be located.