Abstract: A database system includes an interface and a processor. The interface is configured to receive a transaction request comprising one or more transaction blocks in an order. The processor is configured to evaluate each transaction block of the one or more transaction blocks in the order by: determining in the order whether a condition expression of a transaction block of the one or more transaction blocks is true; and in response to the condition expression of the transaction block being true, adding in the order one or more associated action sets of the transaction block to a transaction context; and in response to each of the transaction blocks being evaluated, cause the transaction context to be executed as an atomic transaction.

Abstract: A database system includes an interface and a processor. The interface is configured to receive a transaction request comprising one or more transaction blocks in an order. The processor is configured to evaluate each transaction block of the one or more transaction blocks in the order by: determining in the order whether a condition expression of a transaction block of the one or more transaction blocks is true; and in response to the condition expression of the transaction block being true, adding in the order one or more associated action sets of the transaction block to a transaction context; and in response to each of the transaction blocks being evaluated, cause the transaction context to be executed as an atomic transaction.

Abstract: A waveguide for use in a head-up or head-worn display, the waveguide comprising: a prism having an entrance pupil for receiving an image; a plurality of gratings configured to direct illumination through the prism towards first and second semi-reflecting surfaces; wherein the semi-reflecting surfaces each reflect a different amount of illumination towards an exit point to produce an output image.

Abstract: A database system includes an interface and a processor. The interface is configured to receive a transaction request comprising one or more transaction blocks in an order. The processor is configured to evaluate each transaction block of the one or more transaction blocks in the order by: determining in the order whether a condition expression of a transaction block of the one or more transaction blocks is true; and in response to the condition expression of the transaction block being true, adding in the order one or more associated action sets of the transaction block to a transaction context; and in response to each of the transaction blocks being evaluated, cause the transaction context to be executed as an atomic transaction.

Abstract: An optical waveguide device for use in a head up display. The waveguide device provides pupil expansion in two dimensions. The waveguide device comprises a primary waveguide and a secondary waveguide, the secondary waveguide being positioned on a face of the primary waveguide. The secondary waveguide has a diffraction grating on a face opposite to the face which contacts the primary waveguide. The diffraction grating diffracts light into more than one diffraction order. Rays diffracted into a non-zero order are trapped in the secondary waveguide by total internal reflection.

Abstract: An optical waveguide device for use in a head up display. The waveguide device provides pupil expansion in two dimensions. The waveguide device comprise a primary waveguide and a secondary waveguide, the secondary waveguide being positioned on a face of the primary waveguide. The secondary waveguide has a diffraction grating on a face opposite to the face which contacts the primary waveguide. The diffraction grating diffracts light into more than one diffraction order. Rays diffracted into a non-zero order are trapped in the secondary waveguide by total internal reflection.

Abstract: A system for determining a quota comprises an input interface and a processor. The input interface is configured to receiving a current workload. The processor is configured to: determine whether the current workload less than or equal to target workload; and in response to the current workload being less than or equal to target workload: indicate no modification to input values; set output values to input values; and provide the output values.

Abstract: A system for determining a quota comprises an input interface and a processor. The input interface is configured to receiving a current workload. The processor is configured to: determine whether the current workload less than or equal to target workload; and in response to the current workload being less than or equal to target workload: indicate no modification to input values; set output values to input values; and provide the output values.

Abstract: A system for determining a quota comprises an input interface and a processor. The input interface is configured to receiving a current workload. The processor is configured to: determine whether the current workload less than or equal to target workload; and in response to the current workload being less than or equal to target workload: indicate no modification to input values; set output values to input values; and provide the output values.

Abstract: An optical waveguide device for use in a head up display. The waveguide device provides pupil expansion in two dimensions. The waveguide device comprise a primary waveguide and a secondary waveguide, the secondary waveguide being positioned on a face of the primary waveguide. The secondary waveguide has a diffraction grating on a face opposite to the face which contacts the primary waveguide. The diffraction grating diffracts light into more than diffraction order. Rays diffracted into a non-zero order are trapped in the secondary waveguide by total internal reflection.

Abstract: A system for determining a quota comprises an input interface and a processor. The input interface is configured to receiving a current workload. The processor is configured to: determine whether the current workload less than or equal to target workload; and in response to the current workload being less than or equal to target workload: indicate no modification to input values; set output values to input values; and provide the output values.

Abstract: A system for determining a quota comprises an input interface and a processor. The input interface is configured to receive an input quota value. The processor is configured to: determining total reservations for shared balances; determining whether the total reservations exceed ideal value maximum shared reservation amount; and in the event that the total reservations do not exceed an ideal value maximum shared reservation amount: indicating no modification to input quota value; setting output quota value to input quota value; and providing the output quota value.

Abstract: An optical waveguide device for use in a head up display. The waveguide device provides pupil expansion in two dimensions. The waveguide device comprise a primary waveguide and a secondary waveguide, the secondary waveguide being positioned on a face of the primary waveguide. The secondary waveguide has a diffraction grating on a face opposite to the face which contacts the primary waveguide. The diffraction grating diffracts light into more than diffraction order. Rays diffracted into a non-zero order are trapped in the secondary waveguide by total internal reflection.

Abstract: A system for determining a quota comprises an input interface and a processor. The input interface is configured to receive an input quota value. The processor is configured to: determining total reservations for shared balances; determining whether the total reservations exceed ideal value maximum shared reservation amount; and in the event that the total reservations do not exceed an ideal value maximum shared reservation amount: indicating no modification to input quota value; setting output quota value to input quota value; and providing the output quota value.

Abstract: An optical waveguide device for use in a head up display. The waveguide device provides pupil expansion in two dimensions. The waveguide device comprise a primary waveguide and a secondary waveguide, the secondary waveguide being positioned on a face of the primary waveguide. The secondary waveguide has a diffraction grating on a face opposite to the face which contacts the primary waveguide. The diffraction grating diffracts light into more than diffraction order. Rays diffracted into a non-zero order are trapped in the secondary waveguide by total internal reflection.

Abstract: A system for determining a quota comprises an input interface, a candidate quota determiner, one or more quota modification determiners, and an output interface. The input interface is for receiving a quota request for an activity and receiving an estimation or an actual measurement of one or more operating parameters. A candidate quota determiner is for determining a candidate quota amount based at least in part on candidate quota parameters. The one or more quota modification determiners are for determining one or more quota modifications based on the estimation or the actual measurement of the one or more operating parameters. The output interface for providing a final quota amount based at least in part on the candidate quota amount and the one or more quota modifications.

Abstract: A system for determining a quota comprises an input interface, a candidate quota determiner, one or more quota modification determiners, and an output interface. The input interface is for receiving a quota request for an activity and receiving an estimation or an actual measurement of one or more operating parameters. A candidate quota determiner is for determining a candidate quota amount based at least in part on candidate quota parameters. The one or more quota modification determiners are for determining one or more quota modifications based on the estimation or the actual measurement of the one or more operating parameters. The output interface for providing a final quota amount based at least in part on the candidate quota amount and the one or more quota modifications.

Abstract: A glare visor (13) for reducing ambient light intensity perceived by a wearer viewing a head-up display (3) employing display light (7) including a given wavelength(s) of light. The visor includes a visor body comprising optically transparent material which is partially absorbing of light of visible optical wavelengths thereby to reduce the intensity of ambient light transmitted therethrough to the wearer. A transparent optical coating (12) is formed upon a surface of the visor body which is partially transmissive of light of visible optical wavelengths amongst which it is preferentially transmissive of light of a sub-range of wavelengths for including therein the wavelength(s) of display light. This permits a perceived enhancement of contrast between display light (7) relative to ambient light (8).

Abstract: A system for determining a quota comprises an input interface, a candidate quota determiner, one or more quota modification determiners, and an output interface. The input interface is for receiving a quota request for an activity and receiving an estimation or an actual measurement of one or more operating parameters. A candidate quota determiner is for determining a candidate quota amount based at least in part on candidate quota parameters. The one or more quota modification determiners are for determining one or more quota modifications based on the estimation or the actual measurement of the one or more operating parameters. The output interface for providing a final quota amount based at least in part on the candidate quota amount and the one or more quota modifications.

Abstract: A mobile device case has a case configured to receive a mobile device and a wrist system configured for attachment to a wrist of a user. The case is selectively removable from the wrist system.