Abstract: An optical lens device for a head-mounted display includes a transparent support substrate and a Fresnel lens disposed thereon. The Fresnel lens includes a central lens element and a plurality of prismatic elements arranged relative to the central lens element in a proximal-to-distal manner. Each of the prismatic elements has a base facing toward the support substrate, and a draft facet and a sloped facet extending from the base away from the support substrate to intersect with each other to form an apex. Each of the prismatic elements has a height measured from the base to the apex and not greater than 75 ?m. The base has a width not greater than 250 ?m. A method and a mold for producing the optical lens device are also disclosed.

Abstract: An optical lens device for a head-mounted display includes a transparent support substrate and a Fresnel lens disposed thereon. The Fresnel lens includes a central lens element and a plurality of prismatic elements arranged relative to the central lens element in a proximal-to-distal manner. Each of the prismatic elements has a base facing toward the support substrate, and a draft facet and a sloped facet extending from the base away from the support substrate to intersect with each other to form an apex. Each of the prismatic elements has a height measured from the base to the apex and not greater than 75 ?m. The base has a width not greater than 250 ?m. A method and a mold for producing the optical lens device are also disclosed.

Abstract: A light guide substrate includes first and second triangular prisms juxtaposed to each other on a light exit face thereof. Each of the first and second triangular prisms has a rounded vertex. The number of the first triangular prisms is smaller than the number of the second triangular prisms. Each first triangular prism has a first height from the light exit face. Each second triangular prisms has a second height from the light exit face. The second height is between 20 and 90 percent of the first height. A backlight module includes the aforesaid light guide substrate, a reverse prism sheet disposed on the light guide substrate, and a light emitting unit to emit light rays into the light substrate.

Abstract: An authentication system is provided in the invention. The authentication system may include a core network and user equipment (UE). The core network selects an Extensible Authentication Protocol-Tunneled Transport Layer Security (EAP-TTLS) method for security authentication according to a registration request. The UE transmits the registration request to the core network to perform the security authentication.

Abstract: A backlight module includes a light guide plate, a light source, a prism sheet, and a reflective film. The light source is disposed on a light-incident surface of the light guide plate. The prism sheet is disposed on a light exit surface of the light guide plate, and includes a plurality of first prism structures that protrude toward the light exit surface of the light guide plate. The reflective film is disposed on a reflection surface of the light guide plate, and includes a film body, a plurality of second prism structures that are disposed on the film body and that protrude from the film body toward the reflection surface, and a light absorbing layer that is disposed on the film body opposite to the second prism structures.

Abstract: A backlight module includes a light guide plate, a light source, a prism sheet, and a reflective film. The light source is disposed on a light-incident surface of the light guide plate. The prism sheet is disposed on a light exit surface of the light guide plate, and includes a plurality of first prism structures that protrude toward the light exit surface of the light guide plate. The reflective film is disposed on a reflection surface of the light guide plate, and includes a film body, a plurality of second prism structures that are disposed on the film body and that protrude from the film body toward the reflection surface, and a light absorbing layer that is disposed on the film body opposite to the second prism structures.

Abstract: A dynamic bandwidth allocation method for a software-defined network requires wireless access point (AP) and router. First total bandwidth information of the AP and second total bandwidth information of the router are retrieved. Bandwidth values of the AP and of the router are configured according to the first and second total bandwidth information respectively. On a first client connecting to the AP, it is determined whether there is sufficient bandwidth for the AP and the router according to bandwidth information currently required by the first client, and connection is permitted if there is sufficient bandwidth for the AP. Bandwidth values of the AP and of the router are configured as third and fourth values for voice calls according to the bandwidth information currently required by the first client.

Abstract: A light guide plate includes a plate body having a light exit surface, a reflection surface opposite to the light exit surface, and a light-incident surface connected between the light exit surface and the reflection surface and adapted to face a light source. The light-incident surface includes a vertical portion perpendicularly connected to the light exit surface, and a sloped portion connecting the vertical portion and the reflection surface. The sloped portion is inwardly inclined from the vertical portion towards the reflection surface.

Abstract: A light guide plate includes a plate body having a light exit surface, a reflection surface opposite to the light exit surface, and a light-incident surface connected between the light exit surface and the reflection surface and adapted to face a light source. The light-incident surface includes a vertical portion perpendicularly connected to the light exit surface, and a sloped portion connecting the vertical portion and the reflection surface. The sloped portion is inwardly inclined from the vertical portion towards the reflection surface.

Abstract: A light guide plate includes a light guide layer and a first microstructure layer. The light guide layer has a light exit surface, a back surface, and a light incidence surface interconnecting the light exit surface and the back surface. The first microstructure layer is disposed on the back surface, and includes a plurality of first microstructures spaced apart from one another. Each first microstructure has a polygonal planar base, and two first inclined faces and two second inclined faces which extend from the planar base, and which are proximal and distal to the light incidence surface, respectively. Each first inclined face intersects the respective second inclined face at a respective first ridge. Each first ridge cooperates with the planar base to form a first angle that ranges from 5 to 70 degrees.

Abstract: A light guide plate includes a light guide layer and a first microstructure layer. The light guide layer has a light exit surface, a back surface, and a light incidence surface interconnecting the light exit surface and the back surface. The first microstructure layer is disposed on the back surface, and includes a plurality of first microstructures spaced apart from one another. Each first microstructure has a polygonal planar base, and two first inclined faces and two second inclined faces which extend from the planar base, and which are proximal and distal to the light incidence surface, respectively. Each first inclined face intersects the respective second inclined face at a respective first ridge. Each first ridge cooperates with the planar base to form a first angle that ranges from 5 to 70 degrees.

Abstract: A computing method for ridesharing paths, a computing apparatus and a recording medium using the same are provided. This invention finds the ridesharing paths out from the target trajectory which have ridesharing relationship with a plurality of candidate trajectories. People on the ridesharing paths can share a ride on a part of or whole target trajectory. In the computing method, a trajectory is transformed into a sequence of blocks. After target trajectory and a plurality of the candidate trajectories are transformed, it is determined whether each of the blocks of the candidate trajectories overlaps with at least one of the blocks of the target trajectory. Then, ridesharing paths are calculated according the screened candidate trajectories. This method is many-to-one method which compares a plurality of the candidate trajectories to one target trajectory at one time.

Abstract: A computing method for ridesharing paths, a computing apparatus and a recording medium using the same are provided. This invention finds the ridesharing paths out from the target trajectory which have ridesharing relationship with a plurality of candidate trajectories. People on the ridesharing paths can share a ride on a part of or whole target trajectory. In the computing method, a trajectory is transformed into a sequence of blocks. After target trajectory and a plurality of the candidate trajectories are transformed, it is determined whether each of the blocks of the candidate trajectories overlaps with at least one of the blocks of the target trajectory. Then, ridesharing paths are calculated according the screened candidate trajectories. This method is many-to-one method which compares a plurality of the candidate trajectories to one target trajectory at one time.

Abstract: An optical device includes a diffusion film including a diffusion film and a condensing film. The diffusion film includes a diffusion layer that exhibits adhesive property and that has a light-incident surface and a light-emitting surface. The light-emitting surface is disposed oppositely of the light-incident surface and having a first microstructure. The condensing film includes a light-transmissive base layer that is adhered onto the light-emitting surface, and a prism layer provided on the light-transmissive base layer opposite to the diffusion film.

Abstract: An optical prism sheet includes a transparent substrate having a light-entrance surface, and a plurality of elongated prisms that protrude from the transparent substrate. Each of the prisms has a scalene triangular cross-section and first and second surfaces that intersect each other to define an apex angle. The apex angle of each of the prisms is divided by a normal line of the transparent substrate into first and second sub-angles that are different from each other. At least one of the light-entrance surface and the first and second surfaces of each of the prisms is roughened to form a plurality of micro-protrusions, each of which has a height ranging from 0.1 ?m to 5 ?m.

Abstract: A customer premise equipment (CPE) with the ability to manage its own resources. When a communication device request establishment of a voice communication with an external terminal. A usage rate of a microprocessor of the CPE is detected, and the usage rate of the microprocessor is determined and classified as being between a number of usage levels. When the usage rate of the microprocessor is in a high level, two virtual channels are created, to divide a network bandwidth of the CPE. One of the virtual channels is used for packets of voice communication, and the other virtual channel is used for transmission of other kinds of data packages.

Abstract: A customer premise equipment (CPE) with the ability to manage its own resources. When a communication device request establishment of a voice communication with an external terminal. A usage rate of a microprocessor of the CPE is detected, and the usage rate of the microprocessor is determined and classified as being between a number of usage levels. When the usage rate of the microprocessor is in a high level, two virtual channels are created, to divide a network bandwidth of the CPE. One of the virtual channels is used for packets of voice communication, and the other virtual channel is used for transmission of other kinds of data packages.

Abstract: A gateway connects to a communication device, and communicates with a voice communication server through a network. When the communication device requests to establish a voice communication with a third-party communication terminal, the gateway parses the request to calculate a network bandwidth sufficient to establish the voice communication, and then requests the voice communication server to allocate the required network bandwidth for establishing the voice communication. Then voice data streaming sent from the communication device and the third-party communication terminal are respectively processed to generate RTP packets. The RTP packets are transmitted between the communication device and the third-party communication terminal, so as to realize the voice communication between the communication device and third-party communication terminal.

Abstract: A network device for establishing quality of service (QoS) between two terminal devices includes a transceiver module and a state-machine setting module. The transceiver module is configured for receiving establishing requests, request responses, acknowledge messages, and QoS requests from any one of the two terminal devices. The state-machine setting module is configured for setting a state of the network device according to a current state of the network device and messages received by the transceiver module, and the state of the network device includes an idle state, an inviting state, a trying state, an acknowledge state, and a QoS state.

Abstract: A subscriber station in communication with a base station transmits a request (REQ) packet to the base station to request an establishment of service flow between the subscriber station and the base station, starts a first timer to time a preset period determined according to the REQ packet, receive a response (RSP) packet from the base station to determine if the base station currently permits the establishment of service flow with the subscriber station. The subscriber station further receives a RSP-DELAY packet from the base station before the first timer times out if the base station does not currently permit the establishment of service flow with the subscriber station, and establishes the service flow with the base station according to the RSP-DELAY packet.