Abstract: A processing device determines a usage schedule for a mobile device based on one or more first criteria, the usage schedule comprising a scheduled active period of the mobile device and a scheduled inactive period of the mobile device. The processing device identifies an additional active period for the mobile device that is based on one or more second criteria. The processing device causes the mobile device to transition into a low power state during the scheduled inactive period and to transition out of the low power state during the additional active period prior to the scheduled active period, wherein the mobile device will perform a scheduled operation during the additional active period and prior to the scheduled active period.

Abstract: A testing apparatus includes a housing having a port for receiving a discharge end of an electrical discharge device. A discharge-receiving circuit is operatively connected to the port, and is configured to receive a discharge from the electrical discharge device. The discharge-receiving circuit includes a default resistor and at least one supplemental resistor. When in a first setting, the discharge-receiving circuit is configured so as to pass the discharge automatically through at least the default resistor. When in a second setting, the discharge-receiving circuit is configurable so as to selectively pass the discharge through at least one of the plurality of resistors.

Abstract: A telephone system having a telephone network line for connection to an external phone line. The telephone system also includes a computer system and a telephone coupled to the telephone network line, and the telephone is taken off-hook to enter a voice command. A transmitter communicates the voice command from the telephone to the computer system without the telephone seizing the external phone line. A computer interface unit is connected to the computer system to receive the voice transmitted from the telephone and to transmit voice signals transmitted by the computer system to the telephone. A phone interface unit is connected between the telephone and telephone network line, and the phone interface unit is selectable between a first mode and a second mode. The phone interface unit connects the telephone to the telephone network line if it is in the first mode, and isolates the telephone from the telephone network line if it is in the second mode.

Abstract: A method and apparatus provide communication in a telephone system connected to an external phone line, wherein the telephone system has a telephone line, a telephone, a phone interface unit coupled to the telephone and the telephone line, a computer system, and a computer interface unit coupled to the computer system and the telephone line. A bias voltage on the telephone line is detected to determine if the telephone is on-hook or off-hook, a ringing voltage on the telephone line is detected to determine if an external call is incoming, and a first carrier transmitted by the phone interface unit is detected. A second carrier is transmitted using the computer interface unit under control of the computer system. Detection of the bias voltage, ringing voltage, and/or first carrier is communicated to the computer system. An off-hook condition is indicated if the line bias voltage is less than an off-hook bias threshold voltage.

Abstract: A remotely controllable, full scale, AC or DC power attenuator, for attenuating power to a load as a function of an input control signal which represents a selected percentage of power to be applied to the load. Bidirectional series switch means are responsive to the input control signal for connecting and disconnecting power to the load.

Abstract: A man-machine interface for use with industrial processes is disclosed having the capability of design and configuration of the interrelationship of components forming an overall industrial process. The man-machine interface further provides operator use, including process monitoring and control, as well as alarm annunciation. Most user interaction with the man-machine interface is performed through a color CRT monitor having a touch panel on the surface of the CRT screen. Operator use may be limited to touch panel interaction while configurer and designer use normally further includes use of a keyboard.The man-machine interface utilizes distributed processing and incorporates a high level graphic language. The graphic language facilitates real time graphic display implementation through use of dynamic and static variables. Variable types are dynamically associated with variable values so that variables can undergo type changes without detrimental effect.

Abstract: A programmable sequence controller is disclosed utilizing digital and analog inputs in order to generate digital output driver signals for the control of external systems or devices. The controller emulates mechanical sequence drums so that at any one time each of the simulated drums within the controller executes one of the addressable drum lines programmed within the drum. Each line of each simulated drum can be programmed to specify the energization or deenergization of any output driver as well as the energization or de-energization of any memory bit utilized by the controller in order to provide communication between drums. Each drum may also be programmed to have one or two sets of exit conditions, which if met, cause the controller to effectively rotate the drum to a specified drum line and execute this new drum line during the next scan of the controller.