(19) United States
`(2) Patent Application Publication (10) Pub. No.: US 2003/0137609 A1
`Hayakawa
`(43) Pub. Date:
`Jul. 24, 2003
`
`US 20030137609A1
`
`(54) MULTIMEDIA SYSTEM USING PLASMA OR
`LIQUID CRYSTAL DISPLAY, DISPLAY
`SYSTEM OF PORTABLE COMPUTER, AND
`SIGNAL RECEIVER FOR TELEVISION,
`RADIO, AND CELLULAR TELEPHONE
`(76) Inventor: Toshio Hayakawa, Los Angeles, CA
`(US)
`Correspondence Address:
`Toshio Hayakawa
`10021 Tabor Street #311
`Los Angeles, CA 90034 (US)
`Appl. No.:
`10,357,552
`
`(21)
`(22)
`
`(63)
`
`(60)
`
`Filed:
`
`Feb. 4, 2003
`Related U.S. Application Data
`Continuation-in-part of application No. 10/100,643,
`filed on Mar. 19, 2002.
`Provisional application No. 60/345,926, filed on Dec.
`31, 2001.
`
`Publication Classification
`
`(51) Int. Cl." .............................. H04N 5/66; H04N 5/46;
`H04N 5/445
`(52) U.S. Cl. ......................... 348/739; 348/552; 348/729;
`7.25/59
`
`(57)
`
`ABSTRACT
`
`A flat panel multimedia display system (210), detachable or
`non-detachable type, of a multimedia portable computer
`(60), plasma or liquid crystal multimedia display system
`(300), a multimedia cellular telephone (40), and multimedia
`receiver system (200) are used to display video and audio
`multimedia information generated for televisions, digital
`radio, cellular telephone systems, portable computers, and
`all other multimedia devices. By connecting the newly
`invented multimedia receiver system (200) to the display
`system (210) of the multimedia portable computer system
`(60), and plasma or liquid crystal multimedia display system
`(300), a user can watch television programs, listen to radio,
`or browse Internet at any time and at any locations.
`
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`HTC EXHIBIT 1017
`
`Page 1 of 22
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`

`

`Patent Application Publication
`
`Jul. 24, 2003 Sheet 1 of 9
`
`US 2003/0137609 A1
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`Page 2 of 22
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`Patent Application Publication
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`Jul. 24, 2003 Sheet 2 of 9
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`US 2003/0137609 A1
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`Page 3 of 22
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`Patent Application Publication
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`Jul. 24, 2003 Sheet 3 of 9
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`Patent Application Publication
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`Patent Application Publication
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`Jul. 24, 2003 Sheet 5 of 9
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`US 2003/0137609 A1
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`Page 6 of 22
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`Patent Application Publication
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`Jul. 24, 2003 Sheet 6 of 9
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`US 2003/0137609 A1
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`Patent Application Publication
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`Jul. 24, 2003 Sheet 8 of 9
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`US 2003/0137609 A1
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`Patent Application Publication
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`Jul. 24, 2003 Sheet 9 of 9
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`FIG. 9
`
`400
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`402
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`404
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`406
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`Voice Mode
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`voice?
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`Voice Mode
`
`Page 10 of 22
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`

`

`US 2003/0137609 A1
`
`Jul. 24, 2003
`
`MULTIMEDIA SYSTEM USING PLASMA OR
`LIQUID CRYSTAL DISPLAY, DISPLAY SYSTEM
`OF PORTABLE COMPUTER, AND SIGNAL
`RECEIVER FOR TELEVISION, RADIO, AND
`CELLULAR TELEPHONE
`
`CROSS REFERENCE TO RELATED
`APPLICATIONS
`[0001] This application is based on and is a continuation
`in-part of my co-pending U.S. utility patent application Ser.
`No. 10/100,643, filed Mar. 19, 2002, for Multimedia Display
`System Using Display Unit of Portable Computer, and
`Signal Receiver for Television, Radio, and Cellular Tele
`phone, and which is, in turn, based on a U.S. provisional
`patent application Ser. No. 60/345,926 filed on Dec. 31,
`2001.
`
`BACKGROUND
`[0002] 1. Field of Invention
`[0003] This invention relates to a multimedia entertain
`ment system using a liquid crystal display of a portable
`computer system, and to the multimedia entertainment sys
`tem for using camera-mounted with sound recording or
`playback function cellular telephones and stand-alone
`plasma or liquid crystal display or alike.
`[0004] 2. Other References
`[0005] “Display Technologies” by Patrick Dunn of Dell
`Corporation, July 1999. Published by Dell Corporation.
`[0006] “Basic Television and Video Systems Sixth Edi
`tion” by Grob Herndon Glencoe. Published by
`McGraw-Hill
`[0007] “HDTV High-Definition Television” by Stan
`Prentiss. Published by TAB BOOKS Inc.
`[0008] “Practical ANTENNA Handbook Second Edi
`tion” by Joseph J. Carr. Published by TAB BOOKS Inc.
`[0009] “Guide to Satellite Technology” by John A.
`Ross. Published by Prompt Publication
`[0010] “The Radio Station, Second Edition” by Michael
`C. Keith/Joseph M. Published by Focal Press.
`[0011] “Microwaves and Wireless Simplified” by Tho
`mas S. Laverghetta. Published by Artech House.
`[0012] “Microwave Engineering and Systems Applica
`tion” by Edward A. Wolf/Roger Kaul. Published by
`John Wiley & Sons
`[0013] 3. Description of Prior Art
`[0014] A portable computer having an active-matrix liq
`uid-crystal display (AMLCD) is very popular according to
`the white paper written by Patrick Dunn of Dell Corporation,
`which is available on the web site of Dell Corporation. The
`processing power of CPU in a portable computer is also
`getting higher and higher in each year as Intel and AMD
`corporation races each other to come up with faster and
`better CPU by squeezing more transistors in limited physical
`space. Despite of these advanced features, average consum
`ers prefer more functions on those high performance por
`table computers.
`
`[0015] In the past, there are many inventions are granted
`for the portable computer having a detachable or non
`detachable display system. However, none of these patents
`are related to this invention. Furthermore, true values for
`those inventions are not passed onto consumers due to the
`luck of true usable devices.
`[0016] Further, the technology of cellular telephone has
`been changing our life style in the past 10 years or so, and
`it will continue to increase the use of cellular telephone
`devices in the future.
`[0017] Recently, new cellular telephones have been intro
`duced. These cellular telephones have camera mounted on
`the cellular telephones. Callers can take pictures and send
`them to multimedia cellular telephone receivers though
`some manufactures do not allow swapping pictures among
`telephone users at all. In any case, this new technology is yet
`to change our life style to take pictures. However, currently
`available camera-mounted cellular telephones can not send
`images with caller’s voice attached. It is nice to send images
`with recorded voice to senders to view images and listen to
`caller’s voice. However, there is no camera-mounted cellu
`lar telephone with sound recording or playback capability.
`[0018] Furthermore, pictures taken by these camera
`mounted cellular telephones are too small to view. The
`digital camera technology is available to take large digital
`image size, and the same technology can be applied to these
`camera-mounted cellular telephones. The problem is on the
`receiver side. Once these large images with sound-recorded
`attached are sent, then a new viewing device is required to
`view these files since there is no such cellular telephone is
`available currently. Furthermore, the viewing size on the
`most of current cellular telephone is too small to view
`images received, and there is no sound-generating mecha
`nism on these camera-mounted cellular telephones.
`[0019] Objects and Advantages
`[0020] Accordingly, besides the objects and advantages of
`the detachable and non-detachable display systems or any
`plasma or liquid crystal display (LCD) type display systems
`described in this patent, several objects and advantages of
`the present inventions are:
`[0021] (a) to provide a method to display television
`broadcasting programs using detachable or non-de
`tachable AMLCD or LCD unit at any place;
`[0022] (b) to provide a method to display a plurality
`of Cellular Internet web contents when used with an
`Internet browser capability cellular telephone;
`[0023] (c) to provide a method to display music video
`that a digital radio station broadcasts digital audio
`and video signals so that a user can listen and watch
`video music;
`[0024] (d) to provide a method to watch television,
`and listen radio while a user works on a portable
`computer at any place and any time;
`[0025] (e) to provide a digital camera and sound
`recording or playback function in a cellular tele
`phone;
`[0026] (f) to provide a file storage system for images
`and sound-recorded files in the camera-mounted
`cellular telephone;
`
`Page 11 of 22
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`
`Jul. 24, 2003
`
`[0027] (g) to provide a sending function in a camera
`mounted cellular telephone to send the image files
`and the sound-recorded files to another and same
`cellular telephone users, and to the multimedia
`receiver system together;
`[0028] (h) to provide a receiving function in a cam
`era-mounted cellular telephone to receive the image
`files and the sound-recorded files together; and
`[0029] (i) to provide an interface connector to pass
`image files, sound-recorded files, and data files to the
`multimedia receiver display system.
`[0030] These and further objects and advantages will be
`apparent to those skilled in the art in conjunction with
`drawings and the detailed description of the preferred
`embodiment set from below.
`
`SUMMARY OF THE INVENTION
`[0031] An AMLCD or LCD unit of a portable computer is
`attached to the main body using mechanical hinges. To use
`the portable computer, a user opens the display system by
`unlatching it from the main body. Then, the user operates
`word processing software or browses Internet using dial-up
`telephone line or local area network after the power is turned
`on and the operating system is started.
`[0032] The display system is one of the expensive com
`ponents in its portable computer. Though prices of portable
`computers are coming down dramatically. However, con
`Sumers are not getting enough benefit using such expensive
`portable computers. The purpose of this invention is to
`increase the benefit and spread high cost component to wider
`capability scope so that consumers can take advantage of
`buying one portable computer with a small feature for the
`big advantages and features. One way to achieve this is to
`use it as a multi-function display system. Lately, sales of
`high definition television (HDTV) and digital television
`(DTV) have been risen at many electronic stores. However,
`since the cost of making huge plasma display system is so
`high, and consequently, implementing and adapting HDTV
`program into consumer are hampered. On the other hand,
`display systems of portable computers are getting less cost
`to produce since millions of units are manufactured in each
`year. Hence, this invention can take advantage of such trend
`by using a display system of the portable computer as
`entertainment display device. This is achievable by display
`ing multimedia information, such as video or music video
`with audio, and uses it as a screen like-television set. Hence,
`using the display system as the television monitor and other
`monitoring devices will enhance, and return the economical
`benefit to consumers.
`[0033] Another advantage using a removed display system
`is to use as monitoring device for an Internet browser
`capable cellular telephone. Lately, much more advanced
`features in cellular telephones are equipped, and provided by
`many of cellular telephone manufactures such as web
`browsing capability and E-mail application. By connecting
`the display systems with these cellular telephones can
`browse Internet very easily rather than using small LCD
`screens currently used in all cellular telephones.
`[0034] Another advantage is to use a newly invented
`camera-mounted and the sound recording or playback cel
`lular telephone in conjunction with the multimedia system.
`
`Once, large digital images are taken by the camera-mounted
`cellular telephone, then the caller can record his/her sound
`associated for each image picture into that camera-mounted
`cellular telephone and store inside the camera-mounted
`cellular telephone for sending these images and sound files
`together to the multimedia system later.
`[0035] Another advantage is to connect the camera
`mounted with sound recording or playback function cellular
`telephone to the multimedia receiver system using a con
`nector mounted on it so that large image files, sound
`recorded files, and data files are transferred and generated on
`the multimedia display system.
`[0036] Yet, another advantage using the multimedia
`receiver and cellular telephone system with any stand alone
`plasma or LCD display systems, that are available at any
`electronic stores, is to be able to display large images and
`regenerate the recorded sound sent by the newly invented
`camera-mounted and the sound recording or playback func
`tion cellular telephone.
`[0037] Yet, another advantage is to use it for a digital radio
`receiver. Today’s modern digital radio broadcasting stations
`can transmit digital music and video picture. Viewers can
`watch the music video and listen to the music, as many
`consumers view music videos on their televisions by using
`this multimedia system.
`[0038] Another advantage is to use it together with a
`digital video display (DVD) player since the connector on
`this display system has the standard signal interface used in
`the video industry.
`[0039] These ideas above mentioned are just few good and
`beneficial to consumers who are thinking of buying the
`newly implemented and designed portable computers. Buy
`ing the portable computer with this newly invented function
`will justify the buying cost because consumers don’t need to
`buy both a TV set and a portable computer at the same time.
`Furthermore, when broadcasting companies are ready to
`broadcast HDTV fully, this newly invented detachable or
`non-detachable display system can use as HDTV monitor,
`which is different from the conventional analog television
`monitor.
`
`BRIEF DESCRIPTION OF FIGURES
`[0040] FIG. 1 illustrates the diagram of the detached
`display system connected with the multimedia receiver
`system for television, radio, multimedia cellular telephone
`system, and satellite systems.
`[0041] FIG. 2 illustrates the detail functional diagram of
`the multimedia receiver system.
`[0042] FIG. 3 illustrates the diagram how the detachable
`multimedia display system and the multimedia receiver
`system connect with the television and radio stations, and
`the satellite station.
`[0043] FIG. 4 illustrates the diagram how the detachable
`multimedia display system and the receiver connect with the
`multimedia cellular telephone system.
`[0044] FIG. 5 illustrates a method how a conventional
`multimedia portable computer system with non-detachable
`multimedia display system connects to the receiver for
`receiving signals transmitted by the television, the radio, and
`the satellite stations.
`
`Page 12 of 22
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`
`Jul. 24, 2003
`
`[0045] FIG. 6 illustrates a toggle circuitry using a plural
`ity of multiplexer integrated chips used in this newly
`invented multimedia portable computer system with non
`detachable multimedia display system.
`[0046] FIG. 7 illustrates the multimedia camera-mounted
`with sound recording or playback function cellular tele
`phone system connected to the multimedia receiver system,
`a stand alone plasma or LCD multimedia display system,
`and World Wide Web (WWW) via Internet Service Provider.
`[0047] FIG. 8 illustrates the multimedia camera-mounted
`with sound recording or playback function cellular tele
`phone system connected to cellular telephone base station,
`Internet Service Provider, and WWW.
`[0048] FIG. 9 illustrates a flowchart operation for the
`multimedia camera-mounted with sound recording or play
`back function cellular telephone system.
`
`DETAILED DESCRIPTION OF THE
`PREFERRED EMBODIMENT—FIGS. 1 TO 8
`[0049] FIG. 1 illustrates how this newly invented detach
`able display system 210 is connected with a newly invented
`receiver 200.
`[0050] A conventional portable computer has a main body
`and a display system. A plurality of cable connects the main
`body and the display system internally. Normally, users do
`not see these cables since they are housed in between the
`display system and the main body internally, which is the
`advantage of the portable computer. Having such mecha
`nism and flexible cables enable to close the display system
`when the portable computer is not used.
`[0051] For using the detachable display system 210, after
`it is detached from the main body of the portable computer
`60 by disconnecting the internal cable 274 and the mechani
`cal hinges, the display system 210 connects to the receiver
`200. There is a signal cable 280, which connects the display
`system 210 and the receiver 200. The receiver 200 can
`receive signals from a satellite station 10, television or radio
`tower stations 20, and a cellular telephone transmission
`tower 30 by having an appropriate antenna type 250 for each
`station. Then the receiver 200 processes the signals trans
`mitted by these stations and sends to the display system 210.
`The detached display system 210 works as the independent
`display system for the television, the music video, and the
`radio programs, and viewers can watch the programs at any
`places.
`[0052] The conventional portable computer 60 connects to
`the Internet 90 to check broadcasting programs at each
`station’s World Wide Web data center 15 and 25 by either
`dial-up or leased telephone line. Once a user finds favorite
`programs in the data center 15 or 25 that the user wants to
`see, then turn off the conventional portable computer 60.
`Then, the user disconnects the display system 210 from the
`main body of the portable computer 60, and connects it to
`the receiver 200. Viewing and selection of preferred pro
`grams transmitted by a broadcast station is achieved by
`adjusting the channel selector, which is the integral part of
`local oscillator 233 and the dashed arrow line 252 in FIG.
`2.
`[0053] The multimedia display system 210 can work with
`the multimedia camera-mounted with sound recording or
`
`playback function cellular telephone system 40, which has
`Internet browse capability. Instead of using a small LCD on
`the device 40, a telephone user can browse Internet using the
`display system 210 and the receiver 200 by using an external
`signal cable 282. Once it is connected then the user browses
`the Internet 90 by using keypads on the multimedia camera
`mounted with sound recording or playback function cellular
`telephone system 40 just as the user normally does using the
`LCD display of the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40.
`Instead of having web contents displayed on the LCD, the
`web contents are displayed on the display system 210.
`[0054] FIG. 2 illustrates detail functional diagram about a
`receiver 200. This is a typical superhetrodyne receiver block
`diagram. There are two input signal interfaces, and one
`output signal interface.
`[0055] The first input signal, which consists of audio and
`video signals, is fed through an antenna 250 to a RF amp
`230. The antenna 250 will have different types depending on
`signal sources from a home television antenna to a satellite
`dish antenna. The RF amp 230 and the tuner 252, which are
`the integral part of the local oscillator 233 and the dashed
`arrow line in FIG. 2, select broadcasting stations that
`viewers want to watch.
`[0056] The second input signal for a cellar telephone
`signal is fed to a video detector/amplifier 236 via an external
`connector 235. A signal cable 282 connects the multimedia
`camera-mounted with sound recording or playback function
`cellular telephone system 40 and the receiver 200 using the
`external connectors 50 and 235. The signal from the multi
`media camera-mounted with sound recording or playback
`function cellular telephone system 40 is non-modulated
`signal, and it is not required to go through the RF 230 and
`an IF ampr 232.
`[0057] Since the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40
`does not have full graphic display capability due to the
`physical size limitation of the LCD, an embedded browser
`software, such as Netscape or Microsoft Internet Explore
`software stored in a plurality of the ROM memory 228, can
`provide such capability. When the receiver 200 receives the
`full web contents via the multimedia camera-mounted with
`sound recording or playback function cellular telephone
`system 40, the CPU 229 detects web contents. If some
`applications are to be run on the receiver 200 such as Java
`application, then a CPU 229 can run Java application
`software, and so on.
`[0058] Preferred channels defined by Federal Communi
`cation Commission (FCC) for both audio and video signal
`are selected by tuning right frequency of the local oscillator
`233 and the tuner 252. The tuner 252 tunes a correct
`frequency with incoming frequency signals from the antenna
`250 and the local oscillator 233 to detect a right career
`frequency for the broadcasting station.
`[0059] The video detector/amplifier 236 separates the
`received signals into a plurality of audio, synchronization,
`and video signals. The audio signal is fed to a second
`intermediate frequency (IF) 240 and then fed to a frequency
`modulation (FM) detector 242 to detect sound. Once small
`sound signal is detected then it is amplified using an audio
`amp 244, which feeds to a speaker 246 to generate audio
`sound.
`
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`[0060] When the synchronization signal is processed
`using a sync separator 224, the output result will have two
`signals. One for horizontal (H) and the other is a vertical (V)
`sync signal. These signals are used together with the video
`signal to form correct pictures on the display system 210.
`Since these signals are analog, they need to be converted for
`the AMLCD display system 210. A digital encoder 226 does
`this process.
`[0061] A video detector/amplifier 236 feeds the video
`signals to a plurality of luminance and chrominance pro
`cessing circuitry 238. The luminance and chrominance cir
`cuitry 238 generates red, green, and blue signals, which are
`fed to a video graphic controller circuitry 216, and processed
`for the display system 210.
`[0062] The video graphic controller 216, a plurality of
`buffer 214, a plurality of red, green, and blue driver 213, and
`its output circuitry 206 are standard output video driver
`circuitry used for any digital display systems, and are used
`in all personal computer graphic display cards.
`[0063] A power supply 262 supplies power to the display
`system 210 and the receiver 200 through the second con
`nector 202 and the plug connector 204. The display system
`210 requires several DC voltages to drive a plurality of
`pixels, a plurality of field effect transistors (FET), and other
`passive components. The power source is supplied normally
`by the portable computer 60. Since the display system 210
`is disconnected from the main unit of the portable computer
`60, it requires separate power source to turn on the display
`system 210. A plug 260 can connect to AC or automobile
`power source.
`[0064] FIG. 3 illustrates a method of receiving signals
`from the satellite 10, and the radio and the television
`broadcasting stations 20 using the detached display system
`210 and the receiver 200. The display system 210 is removed
`from the first connector 270, which mates to the connector
`272 before it is removed. The signal 274 is transferred
`between the display system 210 and the main unit 60 when
`the display system 210 is connected with the main body 60
`while the computer 60 is in operation. A different antenna
`250 is required depending on types of signal sources. For
`receiving satellite broadcasting, a satellite dish antenna is
`used for the receiver 200 whereas for audio and television
`broadcastings, a regular indoor television antenna can be
`used.
`[0065] FIG. 4 illustrates a method of obtaining Internet
`web contents information using the multimedia camera
`mounted with sound recording or playback function cellular
`telephone system 40 and the receiver 200. The current
`method to browse the Internet 90, provided by an Internet
`service provider (ISP) 35, is to use number keypads of the
`multimedia camera-mounted with sound recording or play
`back function cellular telephone system 40. Displaying
`graphical information on the multimedia camera-mounted
`with sound recording or playback function cellular tele
`phone system 40 is limited by the physical size of the
`cellular telephone. Having and connecting the display sys
`tem 210 to the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40
`enables the browsing capability. Furthermore, since the
`display system 210 is detached from the main CPU unit, the
`separate power source is required.
`[0066] FIG. 5 illustrates how the conventional portable
`computer 60 is connected with the receiver 200 while a user
`
`uses the portable computer 60A. Without detaching the
`display system 210A of the conventional portable computer
`or turning off the power of the portable computer 60A, the
`receiver 200 can plug right into the second connector 202,
`in FIG. 2, of the display system 210A of the portable
`computer 60A. The user can watch television or listen to
`radio while the operation of the compute work is uninter
`rupted by toggling predefined keys of the portable computer
`60A.
`[0067] FIG. 6 illustrates an internal switching circuitry
`used when the receiver 200 and the conventional portable
`computer 60 connected, depicted in FIG. 5. The multiplex
`chip 602 receives a plurality of signals 604 and 606 from the
`receiver 200 and the main unit of the conventional portable
`computer 60 respectively. By combining couple of keys and
`pressing them enables the command line 608. The command
`depending which signal is present on the data and sync line
`600 toggles the signal between the receiver 200 and the main
`unit of the portable computer 60.
`[0068] FIG. 7 illustrates the multimedia camera-mounted
`with sound recording or playback function cellular tele
`phone system 40 connected to the multimedia receiver
`system 200, and the cellular telephone base station 30. The
`multimedia receiver system 200 connects to a stand alone
`plasma or LCD display system 300. The data and sync line
`280 connects between the multimedia receiver system 200
`and the stand alone plasma or LCD display system 300.
`When images with associated sound-recorded files are
`received by the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40,
`the multimedia receiver system 200 automatically recognize
`these files since the web server software is running all the
`time. When large images and recorded sound files are
`received by the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40,
`it cannot process these files since the display of the multi
`media camera-mounted with sound recording or playback
`function cellular telephone system 40 is too small. By
`connecting the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40
`to the multimedia receiver system 200, the images and the
`recorded sounds are processed by the multimedia receiver
`system 200, and its output is displayed on the multimedia
`plasma or LCD display system 300.
`[0069] FIG. 8 illustrates the multimedia camera-mounted
`with sound recording or playback function cellular tele
`phone system 40 connects to the cellular telephone base
`station 30, which also is also connected to Internet Service
`Provider 35 via the landline telephone line from the cellular
`telephone base station 30. The multimedia camera-mounted
`with sound recording or playback function cellular tele
`phone system 40 can take any size images using the camera
`42 mounted on the cellular telephone 40. While a caller takes
`a image by using the camera 42, the caller can also record
`any sound associated with that image using a built-in
`microphone and would be stored in the multimedia camera
`mounted with sound recording or playback function cellular
`telephone system 40. Once, images are stored then the caller
`can send these images and sound files to the multimedia
`camera-mounted with sound recording or playback function
`cellular telephone system 40, which in turn, connects to the
`multimedia receiver system 200, whereby these images and
`recorded sound are re-generated.
`
`Page 14 of 22
`
`

`

`US 2003/0137609 A1
`
`Jul. 24, 2003
`
`[0070] FIG. 9 illustrates a flowchart how to take images
`and record sound for each image taken by the multimedia
`camera-mounted with sound recording or playback function
`cellular telephone system 40. First, a user switches normal
`telephone mode to camera and sound ready mode 400. Then
`the camera 42 is ready to take images. When each image is
`taken then the multimedia camera-mounted with sound
`recording or playback function cellular telephone system 40
`asks the question 404 whether the user want to take more
`images or not. When the user selects “Yes”.416 then the user
`is ready to record his/her sound by using a microphone of the
`multimedia camera-mounted with sound recording or play
`back function cellular telephone system 40. If “No”.414 is
`selected then the user is asked the question 408 to take more
`picture or not. However, once the sound is recorded then the
`multimedia camera-mounted with sound recording or play
`back function cellular telephone system 40 asks another
`question 408 whether the user wants to take more pictures or
`not. If the user selects “No”420 then, the multimedia cam
`era-mounted with sound recording or playback function
`cellular telephone system 40 saves all files using file saving
`protocol and exits the camera and sound mode 412. If the
`user selects “Yes”.418 then, the user can take more picture
`and record sound using the camera-mounted with sound
`recording or playback function cellular telephone system 40.
`[0071] Operation—FIGS. 3, 4, 6, 8
`[0072] For using the conventional portable computer 60
`with a detachable unit 210 is as follows: to watch desired
`programs of television or music video programs, first a user
`connects to the Internet 90 by using either dial-up or a
`digitally subscribed line (DSL) line to browse desired pro
`gram, and its time schedule at each broadcast station. Once,
`all information is obtained using the Internet 90 then turn off
`the power of the main portable computer 60. Then the user
`disconnects the display system 210 from a main unit of the
`portable computer 60. Once the display system 210 is
`disconnected then connect the display system 210 to a
`receiver 200 with a signal cable 280. Then select a desired
`channel by adjusting a tuner 252 of the receiver 200. Since
`the display monitor 210 and the receiver 200 are easily
`transportable, the user can see selected programs at any