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Multimedia Systems
Published in Sreeparna Banerjee, Elements of Multimedia, 2019
The most popularly used connecting devices are: Small computer system interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripherals.The media control interface (MCI) typically consists of four parts: (i) AVI video, (ii) CD audio, (iii) sequencer, and (iv) waveaudio, with each of these devices playing certain types of files.The integrated drive electronics (IDE) interface is a standard way for storage devices to connect to a computer.These first three devices have become obsolete and currently the USB is used.The universal serial bus (USB) is a serial bus standard for interface devices.
New Concepts
Published in Thomas Corke, Robert Nelson, Wind Energy Design, 2018
Another concept is a small utility wind portable wind turbine that consists of a 12 in. tall, three‐bladed VAWT[20]. It has a built‐in 15,000 mA‐h battery, a 15 W generator, and a USB port. It can charge battery operated devices having standard USB ports, such as a cell phone. Other examples of small vertical and horizontal wind turbines for powering small appliances are emerging in the market place.
Computing System Elements
Published in Stephen Horan, Introduction to PCM Telemetering Systems, 2017
Universal Serial Bus The Universal Serial Bus (USB) is a serial communication bus that is found in many applications. The balloon payload discussed later in Section 4.5.4 used a USB-based Analog-to-Digital Converter (ADC) for sensor data acquisition and a USB-based camera for photography. In addition to supplying the data to the host computer, the USB connection also supplied power to the ADC and the camera. The ability to power peripherals from the data cable makes this standard very attractive to many designers.
Design and development of T-Shaped antenna structure for wireless communication
Published in Waves in Random and Complex Media, 2022
The speed of data may reach up to 10Gbits/s and more in the mm-wave frequency band. Video transmissions need a tremendous data rate as well as a high bandwidth. To broadcast HD (high definition) video, the data rates should be in gigabits (gb/s) (1080p). If video methods are used before transmission, the data transfer speed might be reduced. Later, data transmission rates of several megabits per second (mb/s) will be possible. Millimeter-wave methods can achieve gigabit speeds, making tasks easier to complete. Enforcing a wireless version of USB 3.0 has sparked a sophisticated curiosity. It is evolving into a desired interface that works not just on computers and tablets but also on televisions and other consumer equipment. In a practical implementation, USB 3.0 specifies a maximum data rate of 5 gigabits per second around 80% of that data rate being used [16–20].
Demonstration of a portable intracortical brain-computer interface
Published in Brain-Computer Interfaces, 2019
Jeffrey M. Weiss, Robert A. Gaunt, Robert Franklin, Michael L. Boninger, Jennifer L. Collinger
Second, we found that the neural data was received by the iBCI software suite with irregular timing that exhibited more variability than the standard iBCI. The spike binning and decoding rates are known to have a significant impact on iBCI performance [29]. The standard iBCI includes dedicated neural signal processors (NSPs) that run a real-time operating system. The NSPs receive continuously sampled neural data from the amplifiers through a fiber optic connection and output extracted spike snippets in real-time to a networked PC over ethernet. Additionally, the standard iBCI software suite is distributed across several high-performance PCs. This is contrasted with the portable iBCI, in which all neural signal processing and iBCI software runs on the Windows 10 tablet PC. Continuously-sampled neural data is transmitted to the tablet from the wNSP hub over USB 2.0. The USB 2.0 specification defines a maximum signaling rate of 480 Mb/s [30]. The portable system streams 16-bit neural data sampled at 30 kHz from up to 256 electrode channels to the tablet over USB, which requires a minimum bandwidth of 123 Mb/s, or 26% of the maximum signaling rate permitted by USB 2.0. While this is theoretically enough bandwidth, a faster protocol such as USB 3.x or gigabit ethernet would enable expansion to higher channelcounts. The wNSP hub sends 526 byte packets at 30 kHz (126 Mb/s) to a 65,536 byte receive buffer, which will buffer at most 124 packets, or 4.1 ms of data. The buffer size could potentially be reduced to decrease latency, but at the expense of potential data loss.
NomadicBTS: Evolving cellular communication networks with software-defined radio architecture and open-source technologies
Published in Cogent Engineering, 2018
Emmanuel Adetiba, Victor O. Matthews, Samuel N. John, Segun I. Popoola, Abdultaofeek Abayomi
The technical specifications of the device as related to this study are presented in Table 1. The device can stream up to 56 MHz of instantaneous data bandwidth over a high-speed USB 3.0 bus operating at 4.8 Gbps full duplex to the host PC. The RF/IF signal processing tasks on the device are carried out by the AD9364 Radio Frequency Integrated Circuit (RFIC), which is a direct conversion transceiver along with the Spartan 6 FGPA. The host PC shown in Figure 2 runs the SDR software back-end of the NomadicBTS architecture. It contains an Intel Core i5-3210M, 8.00 GB Random Access Memory (RAM), and operates at Central Processing Unit (CPU) speed of 2.50 GHz. This PC contains both the Microsoft Windows 8 and the open-source Ubuntu 16.04 LTS OSs. The USRP Hardware Driver (UHD) running on the Windows 8 OS was used in testing the adequacy of the USRP B200 device for this study while the Linux OS serves as the development and deployment platform.