Single frequency network (SFN) for broadcast/multicast application on a spotbeam satellite

    公开(公告)号:US11909503B2

    公开(公告)日:2024-02-20

    申请号:US17387017

    申请日:2021-07-28

    IPC分类号: H04N7/20 H04N7/173 H04B7/185

    CPC分类号: H04B7/18513 H04B7/18515

    摘要: Systems and methods operating a spotbeam satellite network to provide single frequency network broadcast and multicast services. One example embodiment provides a satellite broadcast system. The system includes an electronic processor communicatively coupled to a satellite and a user equipment. The electronic processor is configured to receive a plurality of bearer signals, each bearing identical broadcast program information. The electronic processor is configured to, for each of the plurality of bearer signals, generate one of a plurality of spotbeams for transmission by the satellite within a coverage area. The user equipment is configured to receive the bearer signals from a plurality of adjacent spotbeams of the plurality of spotbeams. The user equipment is configured to constructively utilize the bearer signals received from the plurality of adjacent spotbeams to decode the program information.

    Dynamic production of linear media channels for mobile transport craft

    公开(公告)号:US11641501B2

    公开(公告)日:2023-05-02

    申请号:US17617882

    申请日:2019-07-02

    申请人: VIASAT, Inc.

    摘要: Techniques are described for dynamic production of linear media channels for delivery to passenger devices disposed on mobile transport craft while the transport craft are in transit. For example, each transport craft has an on-board media system. In accordance with a linear channel schedule, the on-board media system can generate a dynamically produced linear media (DPLM) channel that can be streamed as a continuous media channel to passengers on-board the transport craft. The linear channel schedule defines a sequence of programming time slots, including multiple broadcast programming time slots and multiple pre-positioned programming time slots. Dynamically producing the DPLM channel involves, for each upcoming broadcast programming time slot, obtaining a corresponding broadcast channel for receipt as a stream via an off-board communications network; and for each upcoming pre-positioned programming time slot, obtaining a corresponding pre-positioned content segment for receipt from storage on-board the transport craft.

    Dual Purpose Millimeter Wave Frequency Band Transmitter

    公开(公告)号:US20230061698A1

    公开(公告)日:2023-03-02

    申请号:US18048689

    申请日:2022-10-21

    摘要: Systems, apparatuses, and methods for implementing a dual-purpose millimeter-wave frequency band transmitter are disclosed. A system includes a dual-purpose transmitter sending a video stream over a wireless link to a receiver. In some embodiments, the video stream is generated as part of an augmented reality (AR) or virtual reality (VR) application. The transmitter operates in a first mode to scan and map an environment of the transmitter and receiver. The transmitter generates radio frequency (RF) signals in a first frequency range while operating in the first mode. Additionally, the transmitter operates in a second mode to send video data to the receiver, and the transmitter generates RF signals in the first frequency range while operating in the second mode.

    Dual purpose millimeter wave frequency band transmitter

    公开(公告)号:US11480672B2

    公开(公告)日:2022-10-25

    申请号:US17125685

    申请日:2020-12-17

    摘要: Systems, apparatuses, and methods for implementing a dual-purpose millimeter-wave frequency band transmitter are disclosed. A system includes a dual-purpose transmitter sending a video stream over a wireless link to a receiver. In some embodiments, the video stream is generated as part of an augmented reality (AR) or virtual reality (VR) application. The transmitter operates in a first mode to scan and map an environment of the transmitter and receiver. The transmitter generates radio frequency (RF) signals in a first frequency range while operating in the first mode. Additionally, the transmitter operates in a second mode to send video data to the receiver, and the transmitter generates RF signals in the first frequency range while operating in the second mode.

    LOW-POWER RADIO FREQUENCY NETWORK FOR A SYSTEM OF CAMERAS

    公开(公告)号:US20220014716A1

    公开(公告)日:2022-01-13

    申请号:US17486088

    申请日:2021-09-27

    申请人: Non Typical, Inc.

    摘要: A system for transmitting images. The system comprises a first camera having a first camera module having a first sensor configured to capture a first image, the first image including a timestamp, an SD card configured to store the first image, a plurality of light-emitting diodes, a first display configured to display the first image, a first plurality of buttons associated with the first display, and a first communication module programmed to transmit the first image through a low-power communication network. The system further includes a home node configured to be powered by a second plurality of batteries. The home node includes a second communication module programmed to receive the first image from the first communication module over the low-power communication network, a second display configured to display the first image, and a second plurality of buttons associated with the second display.