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`:Spe:c:ia:1 Report: Tesit & M:easurement
`Technollo,c,v ·of Lenses
`
`Apple Exhibit 1342 Page 00001
`
`

`

`Comsat Offers
`Ku-band Service
`Another company has joined the fast
`growing neet of companies offering
`mobile satellite services. As of the
`RTNDA show last month. Comsat
`General Corp. in Washington. DC. a
`subsidiary of Comsat. is offering
`broadcasters a turnkey Ku system in(cid:173)
`cluding a new transponable uplink.
`Named SkyBridge. the system in(cid:173)
`cludes a 2.4-meter dish mounted on a
`19-foot truck with an official setup
`time of five minutes. Two redundant
`high-power amps. video receiver and
`test equipment are rack - mounted for
`customization. The truck can be
`bought or leased as pan of the pack(cid:173)
`age along with satellite time and a
`downlink.
`Comsat General designed and built
`end-to-end NBC's Ku distribution
`system. which includes larger mobile
`uplinks. A company spokesman said
`before RTNDA that the first
`Sky bridge buyer had already been
`lined up.
`
`Setup is Problem
`for Component
`Systems
`
`SMPTE is looking for a way to pos(cid:173)
`sibly eliminate setup in NTSC
`systems in combined component!
`composite facilities as a way of as(cid:173)
`sisting NTSC/component transfer.
`Component systems being set up by
`SMPTE do' not use setup. so such
`transfers are complicat~d by addition
`or deletion of setup and the decrease
`or increase of the level. but mostly in
`decoding because of inaccuracies in
`the setup level.
`The two SMPTE Working Groups
`that are working on standards for
`component television. the Digital
`Video Standards and the Component
`Analog Video Standards Groups. are
`reportedly looking into the matter
`"on an urgent basis."
`"It makes no difference whether
`.. -~ component systems are analog or
`.ital." Stan Baron. the chairman of
`ne Digital Video Standards Group.
`has said. "The removal or addition
`of setup will be a significant source
`of error wherever translation between
`
`14 BWE OCTOBER. 1985
`
`A Dish for Bowls and Other Events
`
`M
`swit
`Our
`
`,.
`
`c
`Wh
`relic
`
`StDnhooter ;s designed to be operational 15 minutes after arriving.
`
`The "finest C-band transportable
`uplink on the road" is how Capitol
`Satellite. a subsidiary of group owner
`Capitol Broadcasting Co. of Raleigh,
`NC. and Raycom. an independent
`college sportS syndicator operating
`out of Charlotte. are describing
`their new Starshooter vehicle. The
`"IS-foot trailer boasts a "I.S-meter
`Andrew anteooa with construction
`
`sturdy enough to allow it to stay in
`business in winds over 80 mph.
`Starshooter is scheduled to roam
`the midwest and southeast this year
`for Raycom's coverage of Big Eight
`and other football and basketball
`conferences and bowls. Capitol Sat(cid:173)
`ellite provides other C- a"d Ku-band
`services through its North Carolina
`Teleport.
`
`the NTSC environment and the com(cid:173)
`ponent environment takes place."
`Menill Weiss. who heads the Com(cid:173)
`ponent Analog Group (see SMPTE re(cid:173)
`pon in this issue). said that "Having no
`setup in NTSC makes it possible to
`keep black levels constant without op(cid:173)
`erator intervention. In addition. there is
`an improvement of approximately ¥4
`dB in signal-to-noise ratio or dynamic
`range achievable by eliminating setup.
`It would only be necessary to add setup
`on the output of a facility when required
`for transmission or interchange ...
`An ad hoc group at SMPTE studying
`component studio implementation will
`investigate elimination of setup and
`will seek input from the industry on this
`issue.
`
`CDN027185
`
`New Telerecording
`Method for Audio
`It is now possible to digitally record
`high-quality audio through a switched
`telephone line onto a floppy disk.
`CompuSonics made audio history re(cid:173)
`cently when the company sponsored a
`telerecording demonstration along with
`AT&T. which provides the high-speed
`lines.
`Live audio of WLS radio was sent
`from Chicago to a CompuSonics
`DSP-2002 via AT&T's Accune!
`Switched 56 and recorded onto floppy
`disk. Later. recorded stereo music was
`also sent over the phone lines and
`played back from a floppy disk with n(l
`noticeable degradation.
`
`Page 00002
`
`

`

`nEWS
`
`The Accunet Switched 56 service is a
`I d:
`Ie 56 kb digital line similar to
`.led private lines which used to be
`I d.
`employed for digital transmission. Be(cid:173)
`cause it's a switched service. however.
`i it can be dialed up as needed at a much
`i lower cost. less than $50 per hour of us(cid:173)
`I age. according to AT&T.
`I The CompuSonics OATS (digital
`audio transmission system) consists of
`I
`. the company's DSP-2002 audio com-
`I, puter. which CompuSoilics has been
`aiming at the audio recording industry,
`I equipped with an optional interface cir-
`
`cuit board and software for high-speed
`digital transmission of audio signals.
`Also used in the demonstration was
`software featuring the company's CSX
`digital audio encoding. a telephone in(cid:173)
`terface unit. and California Microwave
`Aextie unit.
`According to David Schwartz. presi(cid:173)
`dent of CompuSonics, the actual trans(cid:173)
`mission time for a specific recording
`depends on the CSX rate selected. A
`stereo recording with a CSX factor of
`eight. for example. can be sent over the
`Accunet Switcheq 56 service in a peri-
`
`Standard
`Setter
`
`The Standard-Setting Telephone Interface
`(Modestly Improved)
`It's no secret Studer. has become the acknowledged leader in high quality
`telephone interfacing equipment The Studer Telephone Hybrid - already se(cid:173)
`leeted by hundreds of U.S. broadcasters, including all three major networks -
`has been praised for its straightforward design, long-term reliability, and con(cid:173)
`sistently outstanding perfonnance.
`At the heart of the Studer Telephone Hybrid is an auto-balancing hybrid
`circuit which automatically matches phone line impedance while isolating
`send and receive signals for maximwn sidetone attenuation. A built-in limiter
`prevents sudden overloads, and bandpass filters shape the voice signals for
`optimum clarity and system protection. The new updated Studer Hybrid in(cid:173)
`cludes additional noise suppression circuitry to eliminate unwanted noise
`and crosstalk while still preserving true 2-way hybrid operation.
`Now the Studer Telephone Hybrid is also available as part of a complete
`Telephone System. Designed to operate independent of the studio console.
`the self-contained Telephone System includes a microphone input plus a
`palm-sized remote module (on a 30' cable) with VU meter for line level,
`headphone output, and level conbols for microphone, headphone. and tele(cid:173)
`phone receive.
`The time-tested Studer interfaces. Improved for even better performance.
`Expanded for more flexible operation. And built to set the quality standard
`for years to come. Call today for the location of your nearest Studer dealer.
`
`Studer Revox America
`1425 Elm Hill Pike • Nashville, TN 37210· (615) 254-5651
`
`CDN027186
`
`Circle 110 011 Reeder Service Card·
`
`CompuSonics president David Schwaru
`listens as the company makes audio
`history by recording live audio digitally
`over switched telephone service onto
`flopPY disk using the company's
`DSP-2002.
`
`od four times the actual running time_ A
`I5-minute recording will take one
`hour. Schwartz said at the time of the
`demonstration that CSX 16 was under
`development. and that it would have
`the capability to record audio at 6 kHz
`in real time.
`Schwartz said that beta tests of the
`telerecording system have staned in
`New York City and Washington. DC.
`He says a major radio network. which
`he declined to name, is recording news
`actualities over phone lines for
`broadcast.
`However. Schwartz envisions much
`farther-reaching applications for the
`digital audio telecommunications sys(cid:173)
`tem. He mentioned the possibility of
`sending high-quality audio for radio
`spots from the west coast to the east in
`hours. instead ofthe days it would take
`to arrive by mailed tapes. And he even
`visualizes a time when new music will
`be sent out from recording companies
`directly to radio stations or consumers
`at home, from the phone onto floppy
`disk. without the need for tapes or vinyl
`recordings. If that happens. it would be
`good news for CompuSonics. which
`not only has a floppy disk-based digital
`recorder for broadcast use on the mar(cid:173)
`ket. but has been trying to break into the
`consumer marketplace with its floppy
`disk-based DSP-I000.
`
`New Weather Network
`Goes on Satellite
`
`A new weather network is being
`started this fall by Environmental
`Satellite Data of Suitland, MD and
`Wold Communications. Named
`WINX. it will distribute weather
`
`Page 00003
`
`