Abstract: Embodiments of the present invention reduce the amount of energy required to operate air-conditioners and refrigerators by providing a vapor-compression system that harnesses a low- or no-cost source of energy, namely, heat, and uses the harnessed heat to power a new kind of compressor, called a “burst compressor” and a new kind of pump, called a “vapor pump.” The heat-driven burst compressor pressurizes the refrigerant, while also providing “push and pull” vapor refrigerant to the vapor pump. The vapor pump, actuated by the high pressure refrigerant in gaseous form provided by the burst compressor, is configured to pump a combination of gaseous, vaporous and liquid refrigerant out of the receiver tank and inject that low pressure refrigerant mix into the burst compressor, where it is heated to change the state of the refrigerant to a heated, pressurized gas. Then the heated, pressurized gas is released in bursts into the other components of the vapor compression cycle.

Abstract: Embodiments of the present invention reduce the amount of energy required to operate air-conditioners and refrigerators by providing a vapor-compression system that harnesses a low- or no-cost source of energy, namely, heat, and uses the harnessed heat to power a new kind of compressor, called a “burst compressor” and a new kind of pump, called a “vapor pump.” The heat-driven burst compressor pressurizes the refrigerant, while also providing “push and pull” vapor refrigerant to the vapor pump. The vapor pump, actuated by the high pressure refrigerant in gaseous form provided by the burst compressor, is configured to pump a combination of gaseous, vaporous and liquid refrigerant out of the receiver tank and inject that low pressure refrigerant mix into the burst compressor, where it is heated to change the state of the refrigerant to a heated, pressurized gas. Then the heated, pressurized gas is released in bursts into the other components of the vapor compression cycle.

Abstract: Embodiments of the present invention reduce the amount of energy required to operate air-conditioners and refrigerators by providing a vapor-compression system that harnesses a low- or no-cost source of energy, namely, heat, and uses the harnessed heat to power a new kind of compressor, called a “burst compressor” and a new kind of pump, called a “vapor pump.” The heat-driven burst compressor pressurizes the refrigerant, while also providing “push and pull” vapor refrigerant to the vapor pump. The vapor pump, actuated by the high pressure refrigerant in gaseous form provided by the burst compressor, is configured to pump a combination of gaseous, vaporous and liquid refrigerant out of the receiver tank and inject that low pressure refrigerant mix into the burst compressor, where it is heated to change the state of the refrigerant to a heated, pressurized gas. Then the heated, pressurized gas is released in bursts into the other components of the vapor compression cycle.

Abstract: Embodiments of the present invention reduce the amount of energy required to operate air-conditioners and refrigerators by providing a vapor-compression system that harnesses a low- or no-cost source of energy, namely, heat, and uses the harnessed heat to power a new kind of compressor, called a “burst compressor” and a new kind of pump, called a “vapor pump.” The heat-driven burst compressor pressurizes the refrigerant, while also providing “push and pull” vapor refrigerant to the vapor pump. The vapor pump, actuated by the high pressure refrigerant in gaseous form provided by the burst compressor, is configured to pump a combination of gaseous, vaporous and liquid refrigerant out of the receiver tank and inject that low pressure refrigerant mix into the burst compressor, where it is heated to change the state of the refrigerant to a heated, pressurized gas. Then the heated, pressurized gas is released in bursts into the other components of the vapor compression cycle.

Abstract: A system and method are provided that enable the analysis of the timing slack for block-to-block connections. Based on the analysis of the timing slack for block-to-block connections, timing path slack values are determined and used to render a presentation of the timing path slack values along with a presentation of the block-to-block connections in a rendering of a circuit design.

Abstract: An embodiment of a method for register placement in an integrated circuit (IC) includes determining a data path between circuit elements, placing at least one register along the data path, performing a static timing analysis on the data path, extracting top-level timing data to develop an extended timing path, the extended timing path comprising a plurality of timing path segments; processing the top-level timing data to determine whether the extended timing path violates a timing requirement, and moving the at least one register along the data path to satisfy the timing requirement if the timing requirement is violated.

Abstract: The present invention is a method for collecting, analyzing, and displaying statistics regarding block pin placement prior to routing of an integrated circuit. The statistics are graphically displayed in a graphical user interface (GUI). The GUI graphically displays indications of where block pin congestion problems lie, which allows an integrated circuit designer to quickly pinpoint and correct pin placement in areas of pin congestion to alleviate congestion in these areas prior to routing.

Abstract: Under control of an input signal, a signal line is driven toward a first voltage by coupling a first current path to the signal line. While the first current path is coupled to the signal line, 1) a charge boost is provided to the signal line to increase the rate at which a voltage on the signal line switches toward the first voltage, and 2) current flow through the signal line is clamped to prevent a voltage on the signal line from reaching the first voltage. The current flow may be clamped by means of a resistor in the first current path, and the charge boost may be provided by a capacitor that is coupled in parallel with the resistor.

Abstract: In one disclosed method, a dynamic signal is driven onto a driven end of a first signal line, and an ungrounded bias signal is driven onto a driven end of a second signal line. The ungrounded bias signal is then received at a receiving end of the second signal line, and the dynamic signal is received at a receiving end of the first signal line. The receiving end of the second signal line is coupled to a first input of a quasi-differential receiver, and the receiving end of the first signal line is coupled to a second input of the receiver. The ungrounded bias signal is used to bias a toggle point of the receiver, and the dynamic signal is used to toggle an output of the receiver. Variations of this method, and apparatus that can perform this and other methods, are also disclosed.