Tag Archives: 60GHz RF HD-SDI Link

VidOvation Wireless HD SDI GoalCam on HBO’s 24/7 NHL

See the VidOvation Wireless 720p HD SDI GoalCam Camera for Replay and Goal Verification in action for the National Hockey League.  See a preview of the Winter Classic with the Detroit Red Wings at the Toronto Maple Leafs.  See Mike Murphy and Kris King of NHL Hockey Operations reviewing a critical play in the hockey goal crease. The VidOvation In-net GoalCam helps the NHL make the right call! See the Winter Classic on NBC on January 1st at 1PM ET and 24/7 NHL on HBO.

In-net Wireless HD SDI  GoalCam Goal Verification and Replay Camera System

Instant Replay, Officiating and Training System

Wireless Video

Stay tuned for more VidOvation informational videos…

Posted in Applications - Industries, NHL - National Hockey League, Sports, Wireless Video | Tagged , , , , , , , , , , , | Leave a comment

Six outdoor NHL games in 2014; Yankee, Dodger Stadium included

By  | Puck Daddy – 
 

Getty Images

If you’re not a fan of outdoor hockey, then you will not like the NHL’s plans for next season. Beginning with the 2013-14 season, the outdoor game concept the League has cashed in on will expand dramatically.

During TSN’s “Insider Trading” segment Tuesday, Darren Dreger reported that the league will begin a stadium series next season featuring six outdoor games, starting with the Jan. 1, 2014, Winter Classic between the Detroit Red Wings and Toronto Maple Leafs at Michigan Stadium. The other five match-ups will be:

• Ducks vs. Kings at Dodger Stadium, Jan. 25
• Devils vs. Rangers at Yankee Stadium, Jan. 26
• Islanders vs. Rangers at Yankee Stadium, Jan 29
• Penguins at Blackhawks, Soldier Field, March 1
• Senators at Canucks, BC Place, March 2

See the VidOvation 60GHz Wireless HD SDI In-net GoalCam in operation this season through the Playoffs and at these outdoor events.

Read the full story at http://sports.yahoo.com/blogs/nhl-puck-daddy/five-outdoor-nhl-games-2014-yankee-dodgers-stadium-003823881–nhl.html

Posted in Applications - Industries, Broadcast, NHL - National Hockey League, Sports, Wireless Video | Tagged , , | Leave a comment

VidOvation Expands its Strategy to Bring Affordable, Broadcast Quality Audio and Video to the Corporate and Government Markets

Moving Video ForwardPress Contact:
Buzz Walker
Cognitive Impact
714.447.4993
buzz@cognitiveimpact.com
www.cognitiveimpact.com
or pr@vidovation.com

 For Immediate Release 

VidOvation Expands its Strategy to Bring Affordable, Broadcast Quality Audio and Video to the Corporate and Government Markets

Simplified Fiber Optic Transport Systems, IPTV, and Multi-camera Video Streaming over Wi-Fi, Wired, and Cellular Networks will be Showcased at NAB 2013

Irvine, CA, March 14, 2013 – VidOvation, a leading technology provider of video and data communication systems to the broadcast television and sports markets, announced today the expansion of their corporate strategy to bring their innovative broadcast expertise and technology to corporate AV and government customers at a system and implementation price point that will encourage early adoption from technology leaders and followers alike.

VidOvation’s expanded strategy will focus on three new technologies: 1) IPTV and Video-over-IP systems implemented in an open architecture to provide high end features, quality, and performance at a price point comparable to low end systems; 2) Webcasting and Video Streaming technology providing streaming and encoding for up to 4 cameras over Wi-Fi, wired, and cellular networks at 1/3 the implementation cost of competitive systems; and 3) Fiber optic transmission systems that are the price – performance leader and can connect to SD/HD-SDI, broadband, or RF networks. Continue reading

Posted in Editorial Coverage, NAB Show, News, VidOvation Video Report and Newsletter | Tagged , , , , , , , , , , | 3 Comments

60GHz Unlicensed Wireless Video

60GHz Wireless HD SDI GoalCam Receiver

The Globally Unlicensed 60 GHz Frequency Band for Uncompressed HD SDI Video Transmission 

Transmitting video wirelessly over the 60 GHz spectrum can be an ideal solution for line of sight applications. Clearly, by definition, a wireless solution eliminates the need for cabling such as fiber or coax, which can be difficult or impossible to use in many instances. Additionally, other wireless frequencies come up short for two major reasons. First, lower frequency solutions like Wi-Fi do not have the bandwidth to transport uncompressed HD video, and would therefore need to compress the video at its source, transmit it across wirelessly, and then uncompressed the video at the receive end. This would both add latency and, much more importantly, reduce video quality, which is critical. Second, these lower frequency solutions in unlicensed bands are subject to a great deal of interference, which can adversely affect, and even shut down, a wireless video stream. This would clearly be unacceptable in many situations, and because of its unlicensed status, anyone with a Wi-Fi transmitter could, accidentally or maliciously, interfere with these transmissions.    Continue reading

Posted in 60GHz Unlicensed Wireless, Education, News, NHL - National Hockey League, Sports, Wireless Video | Tagged , , , , , , , , | 2 Comments

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