Tag Archives: in-net goal verification camera

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

NAB Perspectives: VidOvation’s Jachetta Talks Disputed Goals, Accelerated File Transfer

By: Karen Hogan, Assistant Editor
Tuesday, April 24, 2012 – 11:53 am
| Print This Story

The NHL Stanley Cup playoffs are well under way, and VidOvation’s In-Net GoalCam has the best seat in all 16 first-round houses. The company’s In-Net GoalCam 60 GHz wireless technology is mounted in each goal, delivering fully uncompressed video with no bit or resolution manipulation.

In-net Wireless GoalCam for Goal VerificationPresident/CEO Jim Jachetta shows off In-Net GoalCam.

“The video goes from the goal, up to the NHL rack in the replay room, [and] then gets transported to Toronto, where Head Official Mike Murphy looks at all the instant replays,” says VidOvation President/CEO Jim Jachetta. “If there’s a disputed call, they rewind the recorders and look to see if the puck is in or out.”

The In-Net GoalCam, which feeds HD, 720p video via RF transmitter, can be adjusted, panned, tilted, focused, and zoomed remotely via PC. The system includes a receiver that can be mounted in the ceiling up to 150 ft. high.

Also on display at last week’s NAB Show, the SSFC100 Storage Protocol and File Accelerator was developed through VidOvation’s partnership with UK-based ARG Digital. Specifically designed for linking storage area networks without the performance penalties normally associated with long-distance connections, the File Accelerator lends itself particularly well to sports. Using the example of an NBA Playoff game, Jachetta describes a scenario in which the game video has to be sent to the NBA’s archiving facilities for metadata tagging and highlight creation.

“You run into problems moving these large files across networks, whether public networks or private networks,” he says, “It’s difficult for the Internet to handle these very large files. A device like the File Accelerator will reduce the time eightfold or more to move these large files. Say, a file took eight hours to get through the network using traditional protocols; the device will cut that down to 45 minutes.

“In our fast paced world,” he continues, “the quicker the video files can get through the network, the better.”

See the story at http://sportsvideo.org/main/blog/2012/04/24/vidovations-jachetta-talks-disputed-goals-accelerated-file-transfer/

By: Karen Hogan, Assistant Editor
Tuesday, April 24, 2012 – 11:53 am

The NHL Stanley Cup playoffs are well under way, and VidOvation’s In-Net GoalCam has the best seat in all 16 first-round houses. The company’s In-Net GoalCam 60 GHz wireless technology is mounted in each goal, delivering fully uncompressed video with no bit or resolution manipulation.

President/CEO Jim Jachetta shows off In-Net GoalCam.

“The video goes from the goal, up to the NHL rack in the replay room, [and] then gets transported to Toronto, where Head Official Mike Murphy looks at all the instant replays,” says VidOvation President/CEO Jim Jachetta. “If there’s a disputed call, they rewind the recorders and look to see if the puck is in or out.”

The In-Net GoalCam, which feeds HD, 720p video via RF transmitter, can be adjusted, panned, tilted, focused, and zoomed remotely. The system includes a receiver that can be mounted in the ceiling up to 150 ft. high.

Also on display at last week’s NAB Show, the SSFC100 Storage Protocol and File Accelerator was developed through VidOvation’s partnership with UK-based ARG Digital. Specifically designed for linking storage area networks without the performance penalties normally associated with long-distance connections, the File Accelerator lends itself particularly well to sports. Using the example of an NBA Playoff game, Jachetta describes a scenario in which the game video has to be sent to the NBA’s archiving facilities for metadata tagging and highlight creation.

“You run into problems moving these large files across networks, whether public networks or private networks,” he says, “It’s difficult for the Internet to handle these very large files. A device like the File Accelerator will reduce the time eightfold or more to move these large files. Say, a file took eight hours to get through the network using traditional protocols; the device will cut that down to 45 minutes.

“In our fast paced world,” he continues, “the quicker the video files can get through the network, the better.”

Posted in Applications - Industries, Broadcast, NAB Show, NHL - National Hockey League, Sports, Storage - Archive, Trade Shows, Wireless Video | Tagged , , , , , , , | Leave a comment

NY Islanders first for VidOvation NHL In-net GoalCam Cameras for Goal Verification

VidOvation and the NHL integration team have successful installed the first set of In-net HD Goal Cameras for Goal Verification for the NY Islanders.

Please click to see video highlights with VidOvation GoalCam camouflaged on the back upper crossbar.

The In-net GoalCam 60GHz wireless technology is a customizable solution that fits the most demanding sports needs.  This one-of-a-kind wireless technology delivers fully uncompressed video with no bit or resolution manipulation.  Utilizing a 60 GHz wireless platform, the GoalCam offers uncompressed and un-coded broadcast quality video at a competitive price.  While the RF transmitter and camera is integrated in a custom ruggedized housing with an extruded aluminum tube with polycarbonate shock resistant domes on each end.  Not to mention an integrated safety and quick release positive registration bracket that adjusts to all mounting application.

Posted in Applications - Industries, News, NHL - National Hockey League, Sports, Wireless Video | Tagged , , , , , , , , , , , , | 1 Comment

A Maple Leafs Player Destroyed A Pricey Goal Camera – Our GoalCam can take a bullet

Our goal cam can take a bullet – can’t wait to challenge the NHL players when we integrate our systems. VidOvation will start delivering in-net wireless goal cameras for each of the NHL’s 30 venues. The goal cameras use 60-GHz wireless HD-SDI RF technology to aid and support officiating and instant replay to ensure accurate calls.

Toronto Maple Leafs player Joffrey Lupul cost someone a pretty penny when he broke an in-goal camera with a sizzling shot last night.

The goal tied the game at one, and the Leafs went on to win it in OT.

Here’s the video, the carnage comes at the 22 second mark (via Puck Daddy):

Read more: http://www.businessinsider.com/toronto-lupul-shot-camera-2011-10#ixzz1bYcVcDFg

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NHL Network Lights Lamp: New Master Control, TeamCam, VidOvation GoalCam

The NHL is a League on the move. VidOvation is proud to be an extended part of the NHL team by providing In-net Wireless Goal Cameras. The system will aid and support officiating and instant replay to ensure accurate calls at every venue in the league.

NHL - National Hockey League

The systems is based on the utilization of 60 GHz wireless HD-SDI RF technology.  The system has been tested in several exhibition games and in August at the NHL Research, Development and Orientation (RDO) Camp in Etobicoke, Ontario, Canada. Please read the story below on the many technical advancements taking place at the NHL this season.

The NHL Network will drop the puck on the 2010-11 season tonight on the verge of completing a host of production and operations enhancements. These include a master-control center to be launched in February, a TeamCam system that will soon be available at every NHL arena, and a fully redesigned New York City studio that is already being used for the network’s daily news and talk show, NHL Live.

“We’re extremely excited for the start of the season,” says NHL Network VP of Programming Bob Chesterman. “NHL Live and NHL on the Fly have new start times [5 p.m. and 7 p.m. ET, respectively], and we’ve got a lot more in the works this year.”

Keeping NHL Teams in the Loop
During the offseason, the NHL Network constructed a new master-control area at its facility in Stamford, CT. In addition, the league is working with Cisco to build out a comprehensive MPLS (Multiprotocol Label Switching) network, which allows multicasting among NHL arenas, the U.S. and Canada NHL Networks, and league operations.

These advances will allow the Stamford-based NHL Network to receive a profusion of feeds directly from each venue, including clean and dirty home and away feeds, postgame melts, overhead-video-board shows, TeamCams, and, eventually, in-net cams for officiating purposes (to determine whether a puck crossed the goal line).

“Last year, we didn’t have the visibility into some of the arenas that we wanted and have now for hockey operations,” says NHL CTO Peter DelGiacco. “Building out this infrastructure allowed us to put together some very cool time-synched applications that allow us to [receive multiple feeds from the arenas].”

NHL Network Reaps the Benefits
As a result of this infrastructure and the master control, NHL Network can now take a clean feed and insert its own branded graphics for live game telecasts, which were previously dirty feeds featuring graphics from the RSN producing the game.

“With the new master control, we will finally be able to put our own graphics on the games,” says Chesterman. “We will still use their announcers, but we will now have our own graphics and branding.”

In addition, during live games, the NHL Network will now have the ability to show an out-of-market game in the markets of the participating teams. Previously, live games were blacked out entirely in those markets, with no alternative game.

TeamCam in Operation, With More To Come
The MPLS network will also allow NHL Network to use the newly installed TeamCams at NHL arenas this year for live look-ins, morning skates, pregame skates, and pre- and post-game interviews with players, coaches, and beat writers. Rolled out in selected venues (including Vancouver and Tampa Bay) for the 2010-11 Stanley Cup Playoffs, TeamCams are currently installed at more than 20 NHL arenas and are expected be in every venue by November.

“We are still rolling out and testing to get all 30 teams up and running,” says DelGiacco. “That will take us a few weeks into the season, but, for the most part, we have everything up, and it’s working right now.”

The TeamCam system features a Sony BRCH700 robotic camera mounted to the bottom of each arena’s center-hung scoreboard.

“At each arena, we put a rack worth of equipment that allows us to get the feeds out of the arena,” says DelGiacco. “There are two fibers coming back to us: one does control and one does video. Our control points in New York and in [Toronto] can then control any of the cameras on the network.

“We also developed some software that allows you to pick which arena you want,” he continues. “And there are a few presets in terms of camera control: one side of the rink for morning skate, an interview spot next to the bench, and so on.”

NHL Live Gets a Facelift
NHL Live, the daily headlines program hosted by Bill Pidto, Deb Placey, and E.J. Hradek, moves to a new timeslot (5-7 p.m. ET) and will air from a redesigned studio inside the NHL Powered by Reebok store in New York.

“The redesigned set really gives us a better look and feel,” says Chesterman. “We have enhanced the technology and monitors, and there are more options to shoot in the studio. It is not always just two people sitting at a desk; we can move them around.”

Partnership With NBC Sports Group
Even with all these production enhancements, the most high-profile project of them all has not even arrived yet. As part of the 10-year, $2 billion rights deal that the league landed in April, NBC Sports Group will construct an entirely new studio for NHL Network at its Stamford facility. It will serve as an example of the network’s growing partnership with NBC Sports Group.

“[NBC Sports Group] was our partner before, so there is some continuity there,” says Chesterman. “But, obviously, the stakes are higher [following the new rights deal], and everyone is working closer together. Whenever we can share resources or content, we make the extra effort to do that.”

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