摘要:
A system for direct interprocessor communication in a multiprocessor data processing environment. The system utilizes conventional direct data transfer means and existing I/O port instruction capabilities available on most microprocessors. A destination processor requiring data from one of a source processor's internal registers generates a unique address which specifies the register containing the required data. The address is sent to the data transfer means, causing the direct transfer of data from the designated source processor internal register to the destination processor. Specific circuitry to accomplish this direct data transfer function is described.
摘要:
Disclosed are an object locator system, a method and a program storage device. In the embodiments, radio frequency identification (RFID) tags are on objects within a defined area and each RFID tag can be activated by an RF activation signal. When a request (e.g., a verbal or keyed-in request) to locate a specific object is received from a specific user, the required permission to locate the object is verified and, optionally, the identity of the specific user is authenticated. Once the required permission is verified and the identity of the specific user is authenticated, one of three RFID readers transmits an RF activation signal. RF response signals received back at the three RFID readers from the specific object's RFID tag are used to triangulate the position of the specific object. Once determined, the position is communicated (e.g., by map display, verbal message, or text message) to the specific user.
摘要:
Localized logic regions of a circuit include a local comparator electrically connected to a local resistive voltage circuit, to a local resistive ground circuit, and to a local register structure. The local comparator supplies a clock pulse to the local register structures when the local reference voltage is below a local voltage threshold. Activity in the local combinatorial logic structure causes the local reference voltage to drop below the local reference voltage independently of changes in the global reference voltage causing the comparator to output the clock pulse (with sufficient delay to allow the logic results to be stored in the registers only after setup times have been met in the local logic devices). This eliminates the need for a clock distribution tree, thereby saving power when there is no activity in the local combinatorial logic structure.
摘要:
Disclosed are an object locator system, a method and a program storage device. In the embodiments, radio frequency identification (RFID) tags are on objects within a defined area and each RFID tag can be activated by an RF activation signal. When a request (e.g., a verbal or keyed-in request) to locate a specific object is received from a specific user, the required permission to locate the object is verified and, optionally, the identity of the specific user is authenticated. Once the required permission is verified and the identity of the specific user is authenticated, one of three RFID readers transmits an RF activation signal. RF response signals received back at the three RFID readers from the specific object's RFID tag are used to triangulate the position of the specific object. Once determined, the position is communicated (e.g., by map display, verbal message, or text message) to the specific user.
摘要:
Disclosed are embodiments of an integrated circuit that incorporates an asynchronous circuit with a built-in self-test (BIST) architecture using a handshaking protocol for at-speed testing to detect stuck-at faults. In the embodiments, a test pattern generator applies test patterns to an asynchronous circuit and an analyzer analyzes the output test data. The handshaking protocol is achieved through the use of a single pulse generator, which applies a single pulse to the test pattern generator to force switching of the test pattern request signal and, thereby to control application of the test patterns to the asynchronous circuit and subsequent switching of the test pattern acknowledge signal. Generation of this single pulse can in turn be forced by the switching of the test pattern acknowledge signal. Optionally, a time constraint can be added to the capture of the output test data to allow for detection of delay faults.
摘要:
A system and method for protecting computing systems, and more particularly a system and method which a dedicated hardware component configured to communicate with a protection program. A computer hardware subsystem includes a memory comprising content. The content is at least a list of files which have been modified within a predetermined period of time. The list of files is a subset of files of a hard drive. A dedicated hardware component is configured to track the files which have been modified and provide a location of the files to the memory. A communication link between the dedicated hardware component and a protection program provides the protection program with the subset of files of the hard drive as referenced by the memory content.
摘要:
A computer-implemented method and system of enabling concurrent real-time multi-language communication between multiple participants using a selective broadcast protocol, the method including receiving at a first server a real-time communication from a first participant, the real-time communication being addressed to a second participant constructed in a first spoken language. A preferred spoken language of receipt of real-time communication is identified by the second participant. A determination is made whether the preferred spoken language of receipt is different than that of the first spoken language of the real-time communication. The real-time communication from the first spoken language is translated and delivered to the preferred spoken language of receipt of the second participant to create a translated real-time communication whenever the preferred spoken language is different than the first spoken language and forwarded without translation when the preferred spoken language of the second participant is the same as the preferred spoken language of the first participant.
摘要:
A design structure embodied in a machine readable, non-transitory storage medium used in a design process includes a system for dynamically varying the pipeline depth of a computing device. The system includes a state machine that determines an optimum length of a pipeline architecture based on a processing function to be performed. A pipeline sequence controller, responsive to the state machine, varies the depth of the pipeline based on the optimum length. A plurality of clock splitter elements, each associated with a corresponding plurality of latch stages in the pipeline architecture, are coupled to the pipeline sequence controller and adapted to operate in a functional mode, one or more clock gating modes, and a pass-through flush mode. For each of the clock splitter elements operating in the pass-through flush mode, data is passed through the associated latch stage without oscillation of clock signals associated therewith.
摘要:
A design structure embodied in a machine readable, non-transitory storage medium used in a design process includes a system for dynamically varying the pipeline depth of a computing device. The system includes a state machine that determines an optimum length of a pipeline architecture based on a processing function to be performed. A pipeline sequence controller, responsive to the state machine, varies the depth of the pipeline based on the optimum length. A plurality of clock splitter elements, each associated with a corresponding plurality of latch stages in the pipeline architecture, are coupled to the pipeline sequence controller and adapted to operate in a functional mode, one or more clock gating modes, and a pass-through flush mode. For each of the clock splitter elements operating in the pass-through flush mode, data is passed through the associated latch stage without oscillation of clock signals associated therewith.
摘要:
A system, method and program product for retaining a logic state of a processor pipeline architecture are disclosed. A comparator is positioned between two stages of the processor pipeline architecture. A storage capacitor is coupled between a storage node of the comparator and a ground to store an output of the early one of the two stages. A reference logic is provided, which has the same value as the output of the early stage. A logic storing and dividing device is coupled between the reference logic and a reference node of the comparator to generate a logic at the reference node, which is a fraction of the reference logic, and to retain a logic state of the information stored on the storage capacitor. Further mechanisms are provided to determine validity of data stored in the logic storing and dividing device.