Posts Tagged ‘super hi vision’

A Future Affordable 4K And 8K LCD Or LED DTV Widescreen Display?

April 5, 2014
4k, 8k, uhd, shv

The projected cost of future affordable 4K and 8K LCD or LED video display would be equivalent of a given number of unit of affordable 17-inch 1080p unit.

Here on most urban and suburban centers in the Philippines, various retail stores, mall-based hardware stores, and some wholesale appliance stores such as SM Hypermarket, SM Savemore, Puregold, Ace Hardware, and many others introduced an affordable, genuine China-brand-made or locally-brand-made 720p and 1080p resolution widescreen LCD or LED display priced between Php 8,000 to Php 10,000 on respective sizes 17-inch to 23-inch. Low to medium income Philippine households may be capable to buy those affordable video devices as a replacement of (a near phase-out) conventional CRT analog TV if ever they would engage to watch high definition (HD) video broadcast content in the future, whether a current digital cable TV (DVB-C), digital satellite TV (DVB-S2), or free-to-air digital terrestrial TV (ISDB-T). Of course, they would never need to worry that matter as an alternative from an expensive, large HD display of the past priced at Php 50,000 to Php 150,000 being rolled out in the Philippines in late mid-decade 2000s.

But on today’s latest technology trends, the Philippines—as well as other neighboring developing countries in Central and South America, Africa, and Asia—may not able to engage a new high resolution digital TV resolution standards, such as 4K (Ultra high definition) and 8K (Super Hi-Vision) due to highly-bidded price of LCD or LED display unit at respective Php 1 million to Php 10 million. Are there a possibility that those high resolution video units must be lower down depending on a required affordable electronic components on manufacturing process?

Suppose that to make an affordable, portable 4K LED-backlit LCD display, for example, the unit would be equivalent to an assembled four units of 17-inch 1080p display, to be priced at projectedly Php 32,000. Same with affordable 8K LED-backlit LCD display, for example again, with an equivalent to an assembled sixteen units of 17-inch 1080p display or four times that of affordable 4K display, to be priced at projectedly Php 128,000. (See illustration above.)

The manufacturer responsible to develop affordable 4K and 8K display? Only China-based electronic companies or even some locally-based electronic companies in the Philippines would attempt to do so, if and only if they would give a consent from the developer of genuine 4K and 8K video display units such as Hitachi (8K), Panasonic (4K), Sony (4K), JVC (4K), etc., regarding patent rights and fair trade issue.

Future 4K And 8K Broadcast In The Philippines?

Another concern for most local TV networks in the Philippines are the possibility of broadcasting 4K or 8K digital video content, which are very expensive to operate to shoot, record, and stream compared to an affordable SD digital video content and even a gradual expense HD digital video content. To solve this problem, I suggest, every TV network must try to quit to operate a full power analog TV transmission (such as 50 kilowatts and 60 kilowatts) and fully shift to a low-power DTTV transmitter (such as 100 watts, 250 watts, and 1 kilowatts) in order to save money from high-cost electricity bills. Then the network is up to decide whether they would either remain digital SD or shift to HD, 4K, or 8K depending on desired budget to operate… The projected operation cost of streaming HD, 4K, or 8K broadcast with low-power DTTV transmitter is less than, gradually greater than, or equal to the current operation cost of analog or digital SD broadcast with full-power analog TV transmitter. (See illustration below.)

dtv, analog tv, broadcast

A projected cost between digital TV and analog TV broadcast.

Fact Or Fallacy? The Main Secret of Digital Video Content of Full Segment 6 MHz UHF TV Channel Bandwith of ISDB-T Transmission

May 18, 2013

Reminder: To Wikipedia web user contributors (and even the reader), don’t (trust to) post about a typical speculative thoughts or opinion of my statement on this blog to your article mainly because it may not so accurate that was not based on reliable sources.

isdb-t, 8k, shv, super hi vision

A sample diagram of a possible configuration of second generation ISDB-T in the near future based from the latest 8K SHV encoder developed by Mitsubishi Electric as of May 2013.

Japan was the only country that uses a sole variant of digital terrestrial television (DTTV) platform called Integrated Services for Digital Broadcasting–Terrestrial (ISDB-T). As compared to other platforms such as Digital Video Broadcast–Terrestrial (DVB-T) in Europe, Africa, Australia, and selected Asian countries, Advanced Television Systems Committee (ATSC) in North and Central America, including South Korea and Taiwan, and Digital Multimedia Broadcast–Terrestrial (DMB-T) in China and Hong Kong [to be discontinued in the future?], including South Korea and Taiwan, ISDB-T uses a combined action of DVB-T and DVB-H assigned on UHF band, giving more robust and more flexible transmission. The aforementioned Japanese DTV platform was now currently adopted in South America, Philippines, and Maldives.

First generation ISDB-T transmission under a standard 6 MHz UHF TV channel bandwidth consists a total of 13 segments under 16QAM and 64QAM digital modulaton, 12-segment for full HD DTV content and one-segment for mobile DTV transmission. Second generation ISDB-T transmission designed for Super Hi-Vision (SHV) or 8K resolution (7680 x 4320) DTV broadcast, on the other hand, uses higher-level digital modulation such as 1024QAM and 4096QAM, compared to 256QAM used in second generation DVB-T transmission (DVB-T2). An actual structure of second generation ISDB-T transmission under 6 MHz UHF TV channel bandwidth—currently under development after the successful transmission prototype using two UHF channels in Tokyo in 2012—was still unknown.

An additional specific details of the said platform was not publicized in public, but only a known Japanese experts that invented the prototype were responsible to hold confidential development. As I guessed in my thought accordingly on the following illustration but not based on actual reliable sources, each segment of the total 12 segments on first generation ISDB-T may contain a small resolution at about 480 x 360 pixels running on conventional MPEG-2 video codec, forming a full HD content of 1920 x 1080 pixels when combined an entire segments in proper “tagging” of sequence of video image pieces just like solving a jigsaw puzzle.

isdbt

Diagram of a segmented 6MHz channel bandwidth of a first generation ISDB-T transmission compatible for 480p, 720p, and 1080i format.

The concept of a segmented 720p (6-segment 426 x 360 pixels) or 1080i (12-segment 480 x 360 pixels) digital video structure used in first generation ISDB-T transmission may be based on conventional standard definition (SD) video wall being rolled out in 1980s and 1990s, in which it consists of a specialized digital console in order to divide the original 525-line NTSC (480i) or 625-line PAL (576i) analog video resolution into a separate 16 set of frame details of respective 180 x 120 pixels or 180 x 144 pixels before projecting through a separate 16 sets of SD CRT projectors. That technique was the same with the recent demonstration of displaying 16 sets of 1080p digital video image consisting of an actual 16-set full HD video camera shooting scene to form an 8K resolution format in the middle of decade 2000s, for which it would be possibly reflect on this visionary posted on this blog.

One of the recent development of experimental 8K Super Hi Vision digital video signal as of May 2013 was the 17-row MPEG-H HEVC encoder circuitry board cabinet developed by Mitsubishi Electric together with NHK. (CLICK HERE TO DOWNLOAD IN PDF FORMAT FOR DETAILS) Each board from that unit may contain an encoded video with a resolution of 7680 X 256 pixels for rows 1 to 16 and 7680 X 224 pixels for row 17, and then they sandwiched to form an 8K resolution image. If ever the  NHK together with ARIB and DiBEG would develop a final prototype of signal structure of second generation ISDB-T, I wish they should try this latest sample illustration as I thought to speculate as shown above, containing a total of 17 segments for 8K resolution, a 31.1 MHz segment containing AAC stereo audio codec, a 300 KHz one-segment (s0) containing 1080p digital video content, and 600 KHz segment containing (proposed prototype) Dolby 22.1 stereo surround audio codec under 6 MHz UHF TV channel bandwidth. If 8K broadcast would not be used, then second generation ISDB-T may accomodate (1) four subchannel 4K resolution for rows 1 to 16 and 720p resolution for row 17 or (2) sixteen subchannel 1080p resolution for rows 1 to 16 and 720p resolution for row 17.

isdb-t

Speculative possible configuration of 2nd generation ISDB-T under 6 MHz UHF TV channel bandwidth, accomodating one 8K Super Hi Vision subchannel, four 4K UHDTV subchannel, or 16 1080p and one 720p subchannel.

How I wish they would develop an actual, final design of segmented 6 MHz UHF TV channel bandwidth of second generation ISDB-T transmission before the target year of 2020 when 8K broadcast would start. Whether my statement is either a fact or fallacy about first generation ISDB-T, and maybe a possibility about a second generation ISDB-T platform in reality, this blog is open to post their comment for a correction of facts as shown below.

Further Information:

http://www.nhk.or.jp/strl/open99/de-2/shosai-e.html