Abstract: Static random access memory (SRAM) cells and methods of operation are provided which may be used to provide improved writeability and stability to support low voltage operation of memory devices. For example, in one implementation, by temporarily interrupting the connection between portions of an SRAM cell and a power source such as a reference voltage or current source, the writeability of SRAM cells can be improved. Additional read port implementations are also provided to facilitate low voltage operation. In another implementation, a power switch circuit responsive to a word line and logic signals may be used to provide such interruptions.

Abstract: A timing-constrained circuit (e.g., a self-timed circuit) of optimal performance is achieved by allowing the delay of the circuit to be changed dynamically as a function of operating conditions (e.g., operating voltages or temperatures). The delay of timing signals in the timing-constrained circuit for a given operating condition may be selected to have the minimum margin for that operating condition among the available delays to maximize performance over the entire dynamic range of operating conditions.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: The present invention relates to compositions comprising proteins or polynucleotides of Chlamydia sp., in particular combinations of proteins or polynucleotides encoding them, and methods for the use of the proteins or polynucleotides in the treatment, prevention and diagnosis of Chlamydia infection.

Abstract: Static random access memory (SRAM) cells and methods of operation are provided which may be used to provide improved writeability and stability to support low voltage operation of memory devices. For example, in one implementation, by temporarily interrupting the connection between portions of an SRAM cell and a power source such as a reference voltage or current source, the writeability of SRAM cells can be improved. Additional read port implementations are also provided to facilitate low voltage operation. In another implementation, a power switch circuit responsive to a word line and logic signals may be used to provide such interruptions.

Abstract: A hybrid dual match line circuit may include a hit match line coupled to a first group of load devices and a miss match line coupled to discharge through a second group of load devices. Both the hit and miss match lines may be configured to be precharged to an asserted state. Each of the second group of load devices may be activated for discharging by a respective miss signal. The hit match line may be additionally coupled to discharge through first and second discharge path respectively activated for discharging in response to a hit signal and a read/write enable signal. The hit and miss match lines may be electrically isolated from one another, such that when one or more of the respective miss signals are asserted, current from the hit match line does not discharge through the miss match line.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: A memory device having a split power switch is provided to improve the writeability of static random access memory (SRAM) cells without adversely compromising their stability. For example, various split power switch circuits are used to permit the voltage or current of a power supply line connected with one side of an SRAM cell to drop during write operations. This drop weakens one side of the SRAM cell and reduces the drive-fight between transistors of the SRAM cell and external write circuitry. As a result, the minimum voltage for writing new logic states into the SRAM cell is reduced to permit overall lower operating voltages for the SRAM cell and related circuitry. By continuing to maintain a second side of the SRAM cell at the reference voltage or current, the SRAM cell can successfully switch to a newly written logic state.

Abstract: An approach to selectively powering a memory device is provided to improve the writeability of static random access memory (SRAM) cells without adversely compromising their stability. For example, various methods are provided to permit the voltage or current of a power supply line connected with one side of an SRAM cell to drop during write operations. This drop weakens one side of the SRAM cell and reduces the drive-fight between transistors of the SRAM cell and external write circuitry. As a result, the minimum voltage for writing new logic states into the SRAM cell is reduced to permit overall lower operating voltages for the SRAM cell and related circuitry. By continuing to maintain a second side of the SRAM cell at the reference voltage or current, the SRAM cell can successfully switch to a newly written logic state.

Abstract: A dynamic latch includes a first stage for receiving an input data value and for providing true and complement logic values representing the input data value; a second stage for receiving the true and complement logic values into first and second dynamic node, when a control signal is active; and a holding that outputs the true and complement logic values while the control signal is active. The second stage may provide a feedback signal to the first stage to block propagation of changes in the input data value after the true and complement logic values have been received. The feedback signal may be derived, for example, from logic values on the dynamic nodes. A holding circuit may be provided.

Abstract: A hybrid dual match line circuit may include a hit match line coupled to a first group of load devices and a miss match line coupled to discharge through a second group of load devices. Both the hit and miss match lines may be configured to be precharged to an asserted state. Each of the second group of load devices may be activated for discharging by a respective miss signal. The hit match line may be additionally coupled to discharge through first and second discharge path respectively activated for discharging in response to a hit signal and a read/write enable signal. The hit and miss match lines may be electrically isolated from one another, such that when one or more of the respective miss signals are asserted, current from the hit match line does not discharge through the miss match line.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.

Abstract: An elastic power header device and methods of operation are provided to improve both the read and the write margin of static random access memory (SRAM) cells by increasing read stability, reducing read disturbance and improving the Signal to Noise Margin (SNM) figure of merit. For example, various implementations of an elastic power header device are utilized as programmable resistances to permit the power supply lines to reach a maximum voltage. Allowing the power supply lines to reach the reference voltage allows more flexibility in read margin, write margin and read stability. Furthermore, this additional flexibility can be controlled by means for adjusting a voltage. This adjustment voltage can fine-tune the programmable resistances so that the read margin and the write margin can be more conveniently controlled.

Abstract: An elastic power header device and methods of operation are provided to improve the read margin of static random access memory (SRAM) cells by increasing read stability, reducing read disturbance and improving the Signal to Noise Margin (SNM) figure of merit. For example, various implementations of an elastic power header device are utilized as programmable resistances to permit the power supply lines to reach a maximum voltage. Allowing the power supply lines to reach the reference voltage allows more flexibility in read margin and read stability. Furthermore, this additional flexibility can be controlled by means for adjusting a voltage. This adjustment voltage can fine-tune the programmable resistances so that the read margin can be more conveniently controlled.

Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.