Category Archives: TV Technology

VidOvation Puts the ‘Live’ in ‘Live PD’

VidOvation Provides AVIWEST Bonded Cellular for First Live Reality Cop Show

Bonded Cellular Live Production

Bonded Cellular Equipment Guide Feb 2017 TV Technology Magazine

NEW YORK—Premiering last October on A&E, “Live PD” offers viewers a live, unfettered and unfiltered look inside America’s busiest police departments and the communities they patrol. “Live PD” is the first show of its kind to capture and stream live video of police officers on patrol, using bonded cellular technology with dash cams as well as fixed-rig and handheld cameras. As the creators and the production company behind “Live PD,” we at Big Fish Entertainment faced challenges in developing the show. One of the biggest hurdles—the whole premise of “Live PD”—was the ability to capture high-quality live HD video from multiple cameras and stream it in real time to air.

VidOvation provides Bonded Cellular for First Live Reality Cop Show

VidOvation provides Bonded Cellular for First Live Reality Cop Show

CAPTURING MULTIPLE LOCATIONS

On a typical episode, “Live PD” covers officers in six cities, with as many 40 live video feeds coming into a New York-based control room at A&E headquarters. With this large quantity of feeds, traditional satellite or microwave links were not only cost-prohibitive, but did not give us the mobility and flexibility needed to execute the show’s vision.

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VidOvation Showcases New Product Additions for its Broadcast, Corporate, and Government AV Product Lines at NAB 2013

Moving Video ForwardPress Contact:
Curtis Chan
Cognitive Impact
714.447.4993
curtis@cognitiveimpact.com
or pr@vidovation.com

For Immediate Release


VidOvation Showcases New Product Additions for its Broadcast, Corporate, and Government AV Product Lines at NAB 2013

Innovative IPTV, Webcasting, 60GHz wireless HD-SDI, and Fiber Optic Transport systems delivers broadcast quality audio/video at 1/3 the cost


Las Vegas, Nevada, April 3, 2013 – NAB Booth #:
N1307 – VidOvation, a leading technology provider of video and data communication systems to the broadcast television, sports, corporate audio-visual, and government markets, announced today that they will debut at NAB, as part of their expanded business strategy, a new line of product families for IPTV, Webcasting and Fiber Optic Transport designed to increase system performance and flexibility while dramatically reducing overall acquisition, implementation and support costs. The new product families include:

1)    The VidLink II-5 60GHz wireless video link system can be used in ad hoc or permanent installations and features zero frame delay, zero interference, uncompressed 1.5G HD-SDI video, 270Mb/s SD and DVB ASI, globally allocated unlicensed 60 GHz spectrum, no channel coding, ruggedized and water resistant enclosure, water resistant connections, and range for HD of 500m and SD greater than 1000m. Continue reading

Posted in Applications - Industries, AV Technology, Broadcast, Broadcast Engineering, Editorial Coverage, Fiber Optic Transport, Government and Military, GSN - GOVERNMENT SECURITY NEWS, NAB Show, News, NHL - National Hockey League, Professional AV - Pro AV, Satnews Daily, Sports, Sports Video Group - SVG, Trade Shows, TV Technology | Tagged , , , , , , , , | Leave a comment

Uncompressed Wireless HD

Wes Simpson / 05.02.2012 12:35PM

Moving 1.5 Gbps HD signals from one place to another has long been the exclusive domain of wired systems. These could be baseband wired systems (coax, anyone?), fiber-optic systems, or high-speed (10 Gig) Ethernet systems. But until recently, it hasn’t been feasible to transmit these high-speed signals over wireless connections. Now, some new technologies are emerging that have the bandwidth capacity to handle these jumbo-size bit streams.

COFDM

Broadcasters have long used private microwave systems for transporting video signals at sports and other events where camera mobility is valuable. These systems, which often employ COFDM (Coded Orthogonal Frequency Division Multiplexing), typically use licensed frequencies that are coordinated at each venue to avoid interference between different users. Even though these systems have direct HD video inputs and outputs, the radio channel bit rates are not large enough to support uncompressed HD. So, these systems resort to using MPEG-2 and H.264 compression to get the signal to fit within the bit rate of the wireless stream.

60 GHZ

One way to get enough RF bandwidth for an uncompressed HD signal is to use a frequency band where there are fewer limitations and no license required, such as in the 60 GHz band. At least one company, VidOvation, has produced a 60GHz wireless link that is used for transmitting 1.5 Gbps video from an in-goal camera for ice hockey. In this application, the signal transport is one-way, and the receiver can be mounted in the ceiling rafters above the rink. Antennas with narrow beam widths (less than 5 degrees) are used for two reasons: to get higher gain in the direction that the antenna is pointing and to reduce the probability that a source of interference will be within the beam pattern of the receiver.

In-net GoalCam

VidOvation Goalcam, deployed in the most recent NHL season, uses a 60 GHz wireless link to transmit 1.5 Gbps video from an in-goal camera.

MIMO

Multiple Input, Multiple Output radio technology has been a big step forward for high-data rate applications. MIMO systems use multiple inputs to the radio channel (i.e. multiple RF transmitters each feeding a transmit antenna), and multiple outputs (i.e. multiple receive antennas each feeding an RF receiver). Advanced digital signal processing technology in the receiver section allows the different radio signals (which all share the same RF channel frequency) to be separated so that each of the incoming streams can be decoded using the principle of “spatial diversity.” When MIMO systems are deployed, notations such as “2×2” or “4×4” are used to indicate the number of RF transmitters and RF receivers used in the system, with each TX or RX connected to a separate antenna.

Some current digital transmission systems use MIMO technology quite effectively. LTE (Long Term Evolution, often called 4G) mobile phone systems can use MIMO arrangements; in fact, many LTE base stations use MIMO technology to increase throughput and reduce gaps in coverage. The popular WiFi standard 802.11n (which operates in the 2.4 GHz frequency band) supports up to 4×4 MIMO, which gives a theoretical channel bit rate of 600 Mbps. Actual data throughput over such a link would be much lower, due to packet overhead, inter-frame gaps, the need to allow for half-duplex operation, imperfections in the RF channel environment (caused by all those laptops and microwave ovens).

802.11AC

Fig. 1: Comparative speeds for IEEE ’s 802.11 wireless protocol

Fig. 1: Comparative speeds for IEEE ’s 802.11 wireless protocol

The IEEE is finishing up work on a new standard in the very popular 802.11 series, which already includes WiFi and the 802.11n protocols (see Fig. 1). This new standard, 802.11ac, uses signals in the 5–5.8 GHz range, where 802.11a and other systems currently operate on unlicensed frequencies. This is both good and bad; good, because no license is required from the FCC, but also bad, because the number of devices using this frequency will likely increase exponentially as soon as products using the new standard come to market, which is forecast to occur in late 2012 or in 2013.

The biggest benefit of 802.11ac is a substantial increase in the bit rates that can be sent over a wireless channel—up to a theoretical channel bit rate of 6.93 Gbps. This speed would require the use of eight (spatially diverse) transmit antennas, eight (diverse) receive antennas, 256QAM modulation and a 160 MHz radio channel, of which there are only two in the 5 GHz band. In a real application, actual throughput will be much lower, but this technology should still be able to deliver uncompressed HD transmission in some applications some of the time, particularly if the transmitter and receiver are close to each other and other RF interference is minimal.

LOOKING FORWARD

Uncompressed HD video can be transmitted wirelessly at 1.5 Gbps today using 60 GHz technology for some specialized applications. When products that support new standards, such as 802.11ac, come to market, it will be at least theoretically possible to use 5 GHz wireless transmission for uncompressed HD. Once chipsets become available, look for manufacturers to introduce equipment for both general purpose (i.e laptop and tablet) and video-specific applications.

Click for full article from TV Technology

Thanks to Jim Jachetta from VidOvation for supplying some of the data used in this article.  Please follow Jim Jachetta on Twitter @JimJachetta.

Posted in 802.11x - 802.11b - 802.11g - 802.11n, Applications - Industries, Broadcast, Editorial Coverage, Haute Spot, NHL - National Hockey League, Sports, TV Technology, Wireless Video | Tagged , , , , , , , | Leave a comment

VidOvation Appoints New Director of Sales and Marketing

Aliso Viejo, Calif. – September 6, 2011 – VidOvation a recognized manufacturer, distributor and consultant for video communications equipment in the broadcast, government and professional audio-visual industries, today announced the appointment of Nicole Hollinger as the company’s director of sales and marketing.

With over a decade of experience in video communications systems, video over IP, IPTV, video streaming and storage; this new appointment builds on VidOvation

Posted in Broadcast Engineering, Editorial Coverage, Job Listings - Help Wanted, News, TV Technology | Tagged , , , , , , , , , , | 1 Comment

VidOvation Says Webstreaming Products Hot at InfoComm11

VidOvation Says Webstreaming Products Hot at InfoComm11

VidOvation, which offers manufacturing, distribution, consulting and services for video communications equipment to government broadcasters among others, introduced a lot of new products at InfoComm11, but found its webstreaming products to be

Posted in Editorial Coverage, Flash, H.264, HTML5, Partner Profile, Standards, Storage - Archive, Trade Shows, TV Technology, Video Compression, Video Streaming - Webcasting, Windows Media | Tagged , , , , , , , , , , , , | Leave a comment