摘要:
A system and method for creating a limited risk derivative based on a realized variance of an underlying equity is disclosed. In one implementation, a limited risk derivative product includes a capped value for a statistical property reflecting a variance of the underlying equity is calculated based on a pari-mutuel action. The capped value comprises a dynamic value and a cap. The dynamic value reflects an average volatility of prices returns of the underlying equity over a predefined period of time and the cap reflects a maximum value of the dynamic value. The limited risk derivative product additionally includes an average of a summation of each squared daily return of the underlying equity included in the value for the statistical property reflecting the variance of the underlying equity.
摘要:
Methods and systems for creating and trading derivative contracts based on a statistical property reflecting a variance of an underlying asset are disclosed. Typically, an underlying asset is chosen to be a base of a variance derivative and a processor calculates a value of the statistical property reflecting an average volatility of price returns of the underlying asset over a predefined period. A trading facility display device coupled to a trading platform then displays the variance derivative based on the value of the statistical property reflecting the volatility of the underlying asset and the trading facility transmits variance derivative quotes from liquidity providers over at least one dissemination network.
摘要:
A programmable logic device has programmable phase-shifting circuitry. The phase-shifting circuitry is used to generate a set of skewed clock signals that is used to adjust the relative timing of device elements in a circuit synthesized in the programmable logic device. By suitably adjusting the relative timing of the device elements, the circuit critical path lengths are effectively reduced leading to improved circuit frequency performance. Algorithms are provided for establishing clock skew values that lead to improved circuit performance. The algorithms are incorporated in computer aided design tools to enable automatic optimization of circuit designs.
摘要:
An automated system for navigating a medical device through the lumens and cavities in an operating region in a patient. The system includes an elongate medical device, having a proximal end and a distal end adapted to be introduced into the operating region. The system also includes an imaging system for displaying an image of the operating region, including a representation of the distal end of the medical device in the operating region. The system also includes a localization system for determining the position of the medical device in a frame of reference translatable to the displayed image of the imaging system. Finally, the system includes a system for orienting the medical device in a selected direction in the operating region, this system may be, for example, a magnetic navigation system which acts through the interaction of magnetic fields associated with the medical device inside the operating region and at least one external source magnet outside the patient's body.
摘要:
A magnetically navigable atherectomy device includes a cutting head, a flexible drive shaft having a proximal and a distal end, with the cutting device on the distal end, and a magnet associated with the cutting head, the magnet of sufficient size to allow the cutting head to be oriented by an externally applied magnetic field. The magnet may be a portion of the cutting head made from a magnetically permeable or permanent magnetic material, a portion of the drive shaft made from a magnetically permeable or permanent magnetic material; a separate magnet between the cutting head and the drive shaft, a portion a magnet on a sheath covering the drive shaft. Alternatively a guide wire can provided with a magnetic material on its distal end. Through the application of a magnetic field and/or a magnetic gradient, the artherectomy device can be guided to the location of the atheromatous material in the body. Once at the site of atheromatous material, through the application of a magnetic field or magnetic gradient, the device can be manipulated into proximity to the atheromatous material to remove the material.
摘要:
a A positive OFF toggle mechanism 402 is disclosed for a circuit breaker having “ON”, “OFF,” and “TRIPPED” conditions and corresponding handle positions. The circuit breaker 10 includes a pair of contacts 44, one of which is coupled to an operating mechanism 40 having a pivoting member 13. The positive OFF toggle mechanism 402 includes a lower toggle member 404 having a first end 412 operatively coupled to the contact 44 coupled to the operating mechanism 40 and a second end 408 coupled to a toggle pivot pin 416a; an upper toggle member 410 having a first end 412 coupled to the toggle pivot pin 416a and a second end 408 in operative contact with a toggle pin mounted on the operating mechanism 40. The positive OFF circuit breaker further includes a catch member mounted on the pivoting member of the operating mechanism 40, with the catch member arranged to engage the second end 408 of the upper toggle 410 when the circuit breaker 10 is in the TRIPPED condition and the pair of contacts remain together.
摘要:
A shirt is configured as a novelty item and includes first and second indicia on the front panel thereof wherein the indicia are related to one another in meaning. The second indicia is covered by a flap which is readily movable by a person other than the wearer of the shirt to expose the second indicia.
摘要:
Molecularly imprinted polymers created with dendrimers or other hyper branched polymer templates provide superior configuration options for the recognition of macromolecules.
摘要:
A user logic design for a mask-programmable logic device (“MPLD”) may be designed on a comparable or compatible user-programmable logic device (“UPLD”) and migrated to the MPLD, or may be designed directly on an MPLD. If the design is designed on a UPLD, the constraints of the target MPLD—i.e., differences between the devices—are taken into account so that the migration will be successful. If the design is designed directly on an MPLD, constraints of a comparable compatible UPLD are taken into account if the user indicates that the design will be migrated to the UPLD for testing. This means that when a logic design is intended to be migrated back-and-forth between a UPLD and an MPLD, only the intersection of features can be used. To facilitate migration, fixed mappings between pairs of devices may be created.
摘要:
The processor typically uses address registers having a particular bit width to access lines within an address space. The bit width limits the address space to a particular size. Techniques are provided for expanding the allowed address bit width and the corresponding address space size by using immediate addressing. Mechanisms allow the run time generation of instructions that can access an array of addresses of varying size, providing a way of implementing address spaces that are not limited by the bit width of address registers.