A key-accessed (indexed) file is organized such that the file structure consists only of two levels, an index level and a data level. Both levels are permanently stored on a page-organized secondary storage medium that supports random accessing of the pages. The index level is designed to have a fixed and specifiable number of pages and is stored entirely in the computer's memory when the file is in use. The fixed size of the index is made possible by having each index entry reference a data nod...

Each bistable cell of a memory matrix is uniquely accessed through a row transistor and a column transistor connected in series between one node of the bistable cell and the data-in. During WRITE, a single row is accessed activating all of the gates on the row transistors of that row, and a single column is accessed activating all of the gates on the column transistors of that column. Only the addressed cell at the intersection of the accessed row and column has both the row and column transisto...

Flexible, computer-accessed telemetry is provided by a sequence control unit, auxiliary memory and system control registers to permit sensors and digital data sources to be sampled in a programmed format with various groups of samples taken at different rates. Each programmed sample may be processed for transmission in a specified way by including an operation code with the programmed address code used to select the designated sensor or digital data source. Index registers and a scratch pad memo...

An alarm system for recording the occurrence of an alarm condition in a predetermined space comprises a self-contained monitor which defines a sensor armed for sensing the alarm condition and a monitor transmitter which transmits a monitor signal in response thereto. In addition, the system comprises an interface module responsive to the monitor signal which communicates with a telephone line and a telephone answering machine associated with the predetermined space. The interface module includes...

A three dimensional memory which is comprised of a plurality of stacked memory planes, each of which includes at least a continuous transparent photovoltaic-ferroelectric layer sandwiched between two continuous plane transparent electrodes. In one embodiment, the memory planes are comprised of only the photovoltaic-ferroelectric layer sandwiched between the two electrodes, and in another embodiment the ferroelectric layer and a continuous transparent photoconductive layer are sandwiched between ...

A method and system is disclosed for accessing a remote personalized secretarial platform that permits a wide variety of functions with high flexibility, while being easily usable by an individual telephone subscriber. The platform can be accessed whenever the subscriber telephone is off-hook through a voice recognition monitor that monitors the subscriber line and is responsive to a preselected utterance to generate an access signal. Placed at the telephone switch facility, a monitor module is ...

A field-accessed chevron circuit for dividing a single bubble into two bubbles without the assistance of conductor current.

In order to guarantee the instruction execution sequence in a pipeline control data processing system, the present overlap detector device detects whether or not the operands overlap each other in access width units by comparing the store address specified by a store instruction with the fetch address contained in a fetch instruction following the store instruction. Moreover, the overlap detector device detects whether or not an overlap occurs in an area of the access width based on the store ma...

An electrical metering system capable of performing multiple metering functions, collecting data, and wirelessly provides the collected metering data to a utility operator. In the electrical metering system, at least one computing device for initiating a request for data. A first modem connects the computing device to an infrastructure. A wireless embedded modem for wirelessly connects an electric meter to an infrastructure, and the wireless electric modem receives a request from the computing d...

A pet-accessed lighted ramp assembly for making it easier for a pet to climb upon a piece of furniture such as a sofa or bed. The pet-accessed lighted ramp assembly includes a support base being movably disposed upon a ground; and also includes a ramp member being mounted upon the support base for a pet to gain access upon a piece of furniture; and further includes a landing being mounted upon the support base and being connected to the ramp member; and also includes a railing assembly being mou...