Abstract: Systems and methods are presented herein which are configured to provide access to high quality, verifiable random numbers from entropy sources including quantum entropy sources on-demand through application program interfaces (APIs) and other interfaces. A Randomness as a Service (RaaS) provider system can be configured to host an API offering random numbers from a predetermined selection of entropy types and may offer other selections and/or data such as specific entropy source, health check data associated with the random number, source verification data, etc. A RaaS management system can be configured to make requests to one or more RaaS provider systems for random numbers of specific entropy type(s) and then perform cryptographic functions on random numbers and/or pass random numbers to an end user system.

Abstract: A software and hardware infrastructure is provided that can generate traceable and verifiably random number sequences provided from multiple random number sources, including quantum entropy sources, potentially located at multiple points of origin, and distribute the verifiable number sequences across multiple channels and protocols to multiple ultimate destinations in a distributed computing environment. Random number sequences obtained from unique entropy sources can be tagged with information on the provenance and/or other details of the creation of each number sequence. Tags can be used to verify the reliability of each tagged number sequence and/or its associated source. Tags can also include a use indicator to avoid re-use of a tagged number sequence.

Abstract: A system and method for encryption key generation by receiving a plaintext message having a fixed character length and receiving, from a source, a plurality of random number. A matrix is created from the plurality random numbers and has at least one of the number of rows or columns equal to or greater than the character length. An array that can be used as an encryption key or a seed for an encryption key is generated by selecting an initial element within the matrix, selecting subsequent elements using a selection technique until a number of elements in the array is equal to the character length and rejecting any previously selected elements from the array.

Abstract: A system and method for encryption key generation by receiving a plaintext message having a fixed character length and receiving, from a source, a plurality of random number. A matrix is created from the plurality random numbers and has at least one of the number of rows or columns equal to or greater than the character length. An array that can be used as an encryption key or a seed for an encryption key is generated by selecting an initial element within the matrix, selecting subsequent elements using a selection technique until a number of elements in the array is equal to the character length and rejecting any previously selected elements from the array.

Abstract: A software and hardware infrastructure is provided that can generate traceable and verifiably random number sequences provided from multiple random number sources, including quantum entropy sources, potentially located at multiple points of origin, and distribute the verifiable number sequences across multiple channels and protocols to multiple ultimate destinations in a distributed computing environment. Random number sequences obtained from unique entropy sources can be tagged with information on the provenance and/or other details of the creation of each number sequence. Tags can be used to verify the reliability of each tagged number sequence and/or its associated source. Tags can also include a use indicator to avoid re-use of a tagged number sequence.

Abstract: A system and method for encryption key generation by receiving a plaintext message having a fixed character length and receiving, from a source, a plurality of random number. A matrix is created from the plurality random numbers and has at least one of the number of rows or columns equal to or greater than the character length. An array that can be used as an encryption key or a seed for an encryption key is generated by selecting an initial element within the matrix, selecting subsequent elements using a selection technique until a number of elements in the array is equal to the character length and rejecting any previously selected elements from the array.

Abstract: A software and hardware infrastructure is provided that can generate traceable and verifiably random number sequences provided from multiple random number sources, including quantum entropy sources, potentially located at multiple points of origin, and distribute the verifiable number sequences across multiple channels and protocols to multiple ultimate destinations in a distributed computing environment. Random number sequences obtained from unique entropy sources can be tagged with information on the provenance and/or other details of the creation of each number sequence. Tags can be used to verify the reliability of each tagged number sequence and/or its associated source. Tags can also include a use indicator to avoid reuse of a tagged number sequence.

Abstract: A mirror arrangement for reflex cameras is provided. A main mirror is pivotably connected to a steering lever, which is rotatable about a rotary spindle, such that the main mirror is pivoted and lowered during transition into the lower position. A secondary mirror is rotatably mounted to a housing via a pivot arm that is arranged pivotably about a rotary spindle that is fixed to the housing. The rotary spindle of the pivot arm is parallel to the rotary spindle of the steering lever. The mirror arrangement further comprises an actuating lever, which is connected to the main mirror and the pivot arm of the secondary mirror. The actuating lever is configured to provide simultaneous movement of the main mirror and of the secondary mirror from the upper position into the lower position and vice versa.

Abstract: The invention provides an apparatus for discontinuous filtration of a liquid, having a filter station for filtration, a feed line for supplying the liquid to the filter station, and a filter medium movable relative to the station, the filter medium comprising at least two different membranes, which together in the filter station effect multistage filtration. The invention additionally relates to a method for discontinuous filtration of a liquid or for filtering isolated quantities of liquid, comprising: providing a filter station for filtration, the filter station comprising a chamber in which filtration is carried out; moving or transporting a filter medium from a stock into the filter station, the filter medium comprising at least two membranes which are arranged next to one another in the chamber; and supplying the liquid to the chamber, such that the liquid is subjected to multistage filtration through the membranes.

Abstract: An airbag to be inflated by gas for a vehicle includes a base member for the airbag, an opening and closing vent provided in the base member, and a discharging gas control member for restraining gas from discharging from the opening and closing vent. The discharging gas control member closes or slightly opens the opening and closing vent when an occupant does not contact a front surface of the airbag facing the occupant when the airbag is inflated. The discharging gas control member opens or widely opens the opening and closing vent so as to allow the gas to be discharged from the opening and closing vent when the occupant contacts the front surface of the airbag, and the front surface is pushed in a direction opposite to the occupant.

Abstract: A mirror arrangement for reflex cameras, consisting of a main mirror (2), which can pivot in a housing (4), and a pivotable secondary mirror (6), wherein the main mirror (2) is partially transmissive in a central region (5) and the secondary mirror (6) is arranged downstream of this partially transmissive region (5) in the direction of the light and is matched to this region (5) in terms of its size, and wherein, in an upper position, both mirrors (2, 6) are situated in one plane and, in a lower position, the main mirror (2) is aligned at 45° with respect to the upper position and the secondary mirror (6) is aligned such that it is tilted with respect to the main mirror (2), is characterized in that the main mirror (2) is connected in an articulated manner to a steering lever (19), which is rotatable about a rotary spindle (20), such that the main mirror (2) is pivoted and lowered during transition into the lower position, the secondary mirror (6) is connected to a pivot arm (22), which is arranged pivotably

Abstract: An airbag to be inflated by gas for a vehicle includes a base member for the airbag, an opening and closing vent provided in the base member, and a discharging gas control member for restraining gas from discharging from the opening and closing vent. The discharging gas control member closes or slightly opens the opening and closing vent when an occupant does not contact a front surface of the airbag facing the occupant when the airbag is inflated. The discharging gas control member opens or widely opens the opening and closing vent so as to allow the gas to be discharged from the opening and closing vent when the occupant contacts the front surface of the airbag, and the front surface is pushed in a direction opposite to the occupant.

Abstract: Apparatus and methods for attaching a portable device to an object are described. The apparatus comprises a connector that can be used to connect a portable device (or an accessory thereof) to a retention mechanism that is retained to an object. As well, the connector can be used with a new type of attachment device by modifying that attachment device to accept the connector. Thus, the connector can be used with both the new attachment device and the conventional retention mechanisms.

Abstract: A lead assembly comprises a lead body extending from a lead proximal end portion to a lead distal end portion with at least one conductor disposed therein. A lead lumen extends within the lead body and is dimensioned and configured to removably and rotatably seat a driver therein. The driver includes a driver body extending from a driver proximal end to a driver distal end and having a stylet or guidewire lumen disposed therein. An extendable and retractable active fixation mechanism is disposed at the lead distal end portion. The active fixation mechanism is actuatable by rotation of the driver. In one example, the at least one conductor includes a first conductor and a second conductor, in which the first conductor is co-radial with the second conductor. In another example, the driver distal end includes a portion extractably engagable with the lead distal end portion.

Abstract: This document discusses, among other things a method including inserting an electrode into an umbilical vein, and advancing the electrode through the umbilical vein to a location near or in a heart. In an example, the electrode is inserted into an umbilical vein in utero. In another example, the electrode is inserted into an umbilical vein in a child soon after the child is born. In an example, the electrode is connected to a lead. In an example, a lead is inserted through a catheterized umbilicus.

Abstract: This document discusses, among other things, a lead assembly including a lead body, at least one conductor extending through the lead body, and a covering having varied material properties. In an example, the covering is made by forming pieces of material having varied material properties. In another example, the covering is made by varying parameters such as heat or tension during wrapping of a piece of material onto a lead assembly.

Abstract: A lead assembly includes a lead body and at least one cables at least partially disposed within the lead body. The cable has a non-electrode portion and an electrode portion, where the non-electrode portion extends within the lead body, and the electrode portion is external to the lead body.

Abstract: A catheter system includes a mapping catheter having an open lumen and a mapping arrangement provided at a distal end of the mapping catheter. A balloon catheter is movably disposed within the open lumen of the mapping catheter. The balloon catheter has an open lumen dimensioned to receive a lead. A balloon arrangement is provided at a distal end of the balloon catheter and inflatable with an inflation mechanism provided at a proximal end of the balloon catheter. The balloon arrangement is dimensioned to prevent movement of the lead upon inflation of the balloon arrangement, and to permit movement of the lead within the open lumen of the balloon catheter upon deflation of the balloon arrangement.

Abstract: Attachment apparatus for portable devices—especially portable electronic devices—and methods for using such apparatus are described. The attachment apparatus comprises a hooking mechanism and a base mechanism. The attachment apparatus facilitates carrying and using portable electronic devices, as well as allows easy attachment, removal, and retention of the portable device to an object, such as a user of the portable device.

Abstract: An apparatus for portable devices—especially portable electronic devices—and methods for using such apparatus are described. The apparatus is connected to the portable device and is used to attach the portable device (i.e., a cellular phone) to an object (i.e., a belt loop). The apparatus comprises a base mechanism that is connected to the portable device and a hooking mechanism with one part that is connected to the base means and another part that can be attached to the object by a hooking action. The apparatus permits easy and quick attachment (and removal) of the portable device to an object (i.e., the belt) while providing secure retention when not in use. The apparatus can also be used to carry and hold the portable device when it is being used.