摘要:
A bipolar transistor integrated circuit PLA is disclosed. The array includes a first and second mutually isolated epitaxial regions in a semiconductor substrate. A plurality of common collector bipolar transistors are formed in the first epitaxial region with selected ones of the plurality having their emitters connected in common to a first current source. A second plurality of common collector bipolar transistors in the second epitaxial region have the emitters of selected ones of the second plurality connected in common to the first epitaxial region. The bases of the corresponding pairs of transistors from the first and second epitaxial region are connected to an input signal source. The second epitaxial region is connected to an output node. In this manner, a cascode connected PLA is formed which eliminates the need for surplus current sources required in the prior art. The dot OR formed by the circuit effectively merges the prior art OR array with the search array.
摘要:
The utility of a document exposing system for a copying machine that has a separate exposure platen for bulky documents with a cover containing a transport mechanism, is improved by providing for the platen cover to swing up and away from the platen by being pivoted on a horizontal hinge axis that is remote the rear edge of the platen and by providing for the single sheet document feeder to pivot away from the side of the platen by turning about a vertical axis located behind the back edge of the platen. Thus, an open, unobstructed volume over and at the side of the platen is provided whereby pages of extremely large bound volumes may be copied.
摘要:
A document scanning system having a platen for scanning bulky documents and two separate exposing stations for front and reverse side scanning of automatically fed sheet-type original documents. The platen and the two exposing stations are arranged in a common plane for scanning by scanning elements carried on a linearly driven carriage. Image sensing is performed by CCD arrays mounted on the scanner carriage. Scanning at the two exposing stations is conducted with the scanner carriage stationary, while platen scanning proceeds with the scanner carriage moving linearly at a uniform speed.
摘要:
An ink jet printer includes a print head means which generates two parallel rows of jet drop streams. Charge electrodes are mounted on a pair of charge electrode plates which are movable into and out of drop charging positions. A pair of catchers each define a drop catching surface and a drop ingesting slot along the lower edge of the drop catching surface. Each of the catchers is generally pivotally mounted for rotation about an axis parallel to the rows of jet drop streams. The catchers may be pivoted from a drop catching position, in which the drop catching surfaces are substantially parallel, to a full catch position in which drop catching surfaces are inclined to face upward and intercept the jet drop streams. In the full catch position, the drop ingesting slots are positioned closely together. A linkage arrangement is provided for pivoting the catchers from the full catch position to the drop catch position after start up of the print head means. The linkage arrangement also moves the charge electrode plates into the drop charging positions after the catchers are pivoted sufficiently to apply a drop deflecting potential to thereto, but while the drop catching surfaces intercept the jet drop streams.
摘要:
This application is concerned with the treatment of metal surfaces with stable solutions of hexavalent chromium, trivalent chromium, phosphoric acid, polyacrylic acid and water dispersible acrylic emulsion polymer to enhance the corrosion resistance and paint adhesion properties of the metal; the coating uniquely having generally universal utility under a wide variety of paint systems and paint types.
摘要:
A lithographic ink and moisture control system as provided for maintaining copy quality over a wide range of operating and environmental conditions without special operator assistance. The control system, among other things, adjusts the ink and moisture feed rates to compensate for predicted high moisture conditions which occur at several short copy runs, wherein significant moisture is introduced with each new master.
摘要:
A system for capturing regenerative energy includes a battery configured to provide power for a traction motor and other operations of a vehicle and a capacitor connected to the battery. An auxiliary motor is configured to operate as a generator during a regenerative energy operation. The system further includes a controller configured to direct the regenerative energy to the capacitor during the regenerative energy operation and discharge the capacitor to provide power to the traction motor or for the other operations of the vehicle.
摘要:
A method and a system for providing resource management in workflow processing of an enterprise include a multi-level resource manager hierarchy. An upper level includes at least one resource manager having data that represents an enterprise-wide view of resource capabilities. A subordinate second level of resource managers provides partial views of the resource capabilities of the enterprise. These partial views may be based upon organizational or physical boundaries. At a lowermost level of resource managers are local resource managers (LRMs) that include data to track individual resources. Above this lowermost level, the resource managers in the hierarchy track the resources based upon types of resources. Thus, a second level resource manager is configured to be aware of availability of a resource type, but not the availability of an individual resource. Also above the lowermost level, the resource managers are configured to exchange requests for the resources using a number of different messages. A Plead message is used to send a request to a higher level manager. On the other hand, a Delegate message is used to send a request to a lower level manager. A Refer message allows a request to be sent horizontally. Report messages are sent among resource managers to allow updates of cache entries regarding capabilities of other resource managers.
摘要:
A method and apparatus for reliable high-speed access to a database system that stores system data in a non-volatile database, stores current data in an online database object cache, the current data reflecting at least a portion of the system data in the non-volatile database and the online database object cache providing the database system with the capability of querying and updating the current data in the online database object cache, logging each message in the database system as an entry in a durable log file, and periodically committing the current data in the online database object cache to the non-volatile database.
摘要:
A system and method for performing scalable distribution of process flow activities in a distributed workflow management system is described. The distributed workflow management system operates over the computer network which includes a plurality of interconnected computers. Each computer includes a processor, memory and input/output facilities. A plurality of resources are each operatively coupled to at least one of the computers and execute at least one of the activities in the process flow. A process flow engine, including a database in which is stored data used in effecting each of the process flow activities, coordinates and schedules execution of the process flow activities on the resources. Bidirectional proxy components are operatively interposed between the process flow engine and the resources. The bidirectional proxy components include logic for handling application data for the resources, logic for handling worklists for access by the resources and logic for managing transport of messages between the process flow engine and each of the resources.