TRANSLATOR CERTIFICATION
`
`Date: November 12, 2019
`
`To whom it may concern:
`
`I, Frank McGee, a translator fluent in the Japanese and English languages, on behalf of
`Morningside Translations, do solemnly and sincerely declare that the following is, to the best of
`my knowledge and belief, a true and correct translation of the documents listed below in a
`form that reflects the intention and meaning of the original text.
`
`The document desginated as Japanese Unexamined Patent Application Publication No. 2004-350160 A
`
`I hereby declare that I possess advanced knowledge of the Japanese and English languages. My
`qualifications are as follows:
`
`* More than 25 years of experience as a full-time Japanese-English translator of Japanese
`patents, technical documents, and legal documents
`* M.A. in East Asian Languages from the University of Chicago
`
`I hereby declare that all statements made herein of my own knowledge are true and that all
`statements made on information and belief are believed to be true; and further that these
`statements were made with the knowledge that willful false statements and the like so made
`are punishable by fine or imprisonment, or both, under Section 1001 of Title 18 of the United
`States Code.
`
`Frank McGee
`
`Roku Exhibit 1009
`Roku, Inc. v. Canon Kabushiki Kaisha
`IPR2020-00343
`Page 00001
`
`

`

`JP 2004-350160 A 2004.12.9
`
`(19) [Issuing Country] Japan Patent Office (JP)
`(12) [Publication Name] Gazette of Unexamined Patent Applications (A)
`(11) [Publication Number] 2004-350160 (P2004-350160A)
`(43) [Publication Date] December 9, 2004 (2004.12.9)
`
`(51) [Int.Cl.7]
`
`H04N 5/225
`H04N 5/907
`H04N 5/92
` // H04N 101:00
`H04N 5/225
`H04N 5/907
`H04N 5/92
`H04N 101:00
`[Theme Codes (Reference)] 5C022, 5C052, 5C053
`[Examination Request] Not Yet Received
`[Number of Claims] 8
`[Application Format] Online (OL)
`[Total Number of Pages] 12
`
`[FI]
`
`
`
`
`
`F
`B
`H
`
`(21) [Application Number] 2003-146875 (P2003-146875)
`(22) [Filing Date] May 23, 2003 (2003.5.23)
`(71) [Applicant]
`[Identification Number] 000001007
`[Name] Canon Inc.
`[Address] 3-30-2, Shimomaruko, Ota-ku, Tokyo
`(74) [Agent]
`[Identification Number] 100090284
`[Attorney]
`[Name] Tsuneo TANAKA
`(72) [Inventor]
`[Name] Hiroshi SUDA
`[Address] Canon Inc., 3-30-2, Shimomaruko, Ota-ku, Tokyo
`[F Terms (Reference)]
`5C022 AA13 AB00 AC00 AC01
`5C052 AA17 CC11 DD04 EE08 GA01 GA06 GA07 GA08 GB06 GD10 GE08 GF00
`5C053 FA08 FA27 GA11 GB36 GB37 KA03 LA01 LA06 LA15
`
`1
`
`IPR2020-00343 Page 00002
`
`

`

`JP 2004-350160 A 2004.12.9
`
`(54) [Title of the Invention]
`
`Imaging Device
`
`(57) [Abstract]
`
`[Problem]
`
`To easily check the recorded content of a memory card.
`
`[Solution]
`
`An imaging device 100 can be connected by wire to a memory card 120 using a connector
`113 or can be connected wirelessly using an antenna 116. Power is supplied from the
`connector 113 to a block 202 in the memory card 120. Power is supplied from the antenna
`234 to a block 203 via electromagnetic coupling. When power is supplied from the
`connector 113, a power supply circuit 215 supplies power to a memory circuit 221 via a
`selection circuit 222. A captured image and large thumbnail thereof that require large
`capacity and power are recorded in a memory circuit 214. Image information that does not
`require much capacity or power (such as a small thumbnail, date and time captured
`information, date and time recorded information, and image file name information) is
`recorded in memory circuit 221.
`
`[Selected Drawing] FIG. 1
`
`2
`
`IPR2020-00343 Page 00003
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`

`

`JP 2004-350160 A 2004.12.9
`
`[Claims]
`
`[Claim 1]
`
`An imaging device comprising a wired communication means able to conduct wired
`communication with a memory card, a wireless communication means able to conduct
`wireless communication with a memory card, and a display means for displaying an image,
`wherein the imaging device continues to display image information from a first memory card
`for a first predetermined period of time when wireless communication with the first memory
`card has been interrupted while reading and displaying image information from the first
`memory card using the wireless communication means.
`
`[Claim 2]
`
`An imaging device according to claim 1, wherein the imaging device displays image
`information from a second memory card for a second predetermined period of time shorter
`than the first predetermined period of time when wireless communication has been
`interrupted and communication can be established with the second memory card using the
`wired communication means.
`
`[Claim 3]
`
`An imaging device according to claim 1, wherein display of image information from the first
`memory card is ended and image information from a second memory card is displayed
`during the first predetermined period of time when wired communication with the second
`memory card has begun before the first predetermined period of time has elapsed since
`wireless communication was interrupted.
`
`[Claim 4]
`
`An imaging device according to claim 1, wherein display of image information from the first
`memory card is ended and image information from a third memory card is displayed during
`the first predetermined period of time when wireless communication with the third memory
`card has begun before the first predetermined period of time has elapsed since wireless
`communication was interrupted.
`
`[Claim 5]
`
`An imaging device according to claim 1, wherein display of image information from the first
`memory card is ended during the first predetermined period of time when a main unit is
`operated before the first predetermined period of time has elapsed since wireless
`communication was interrupted.
`
`[Claim 6]
`
`An imaging device comprising a wired communication means able to conduct prioritized
`communication with a memory card, a wireless communication means able to conduct
`wireless communication with a memory card, and a display means for displaying an image,
`wherein the imaging device displays image information from a first memory card again after
`displaying image information from a second memory card only for a predetermined period
`of time when communication can be established with the second memory card using the
`wired communication means while image information from the first memory card is being
`read and displayed using the wireless communication means.
`
`3
`
`IPR2020-00343 Page 00004
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`

`

`JP 2004-350160 A 2004.12.9
`
`[Claim 7]
`
`An imaging device comprising a wired communication means able to conduct prioritized
`communication with a memory card, a wireless communication means able to conduct
`wireless communication with a memory card, and a display means for displaying an image,
`wherein the imaging device displays image information from a first memory card again after
`displaying information related to operation of a main unit only for a predetermined period of
`time when the main unit is operated while image information from the first memory card is
`being read and displayed using the wireless communication means.
`
`[Claim 8]
`
`An imaging device according to any one of claims 1 to 7, wherein the image information is
`one or more type of information identifying an image such as a thumbnail of an image, date
`and time information on when an image was captured, date and time information on when
`an image was recorded, and a file name for an image.
`
`[Detailed Description of the Invention]
`
`[0001]
`
`[Technical Field of the Invention]
`
`The present invention relates to an imaging device able to communicate with an external
`recording device such as a memory card.
`
`[0002]
`
`[Prior Art]
`
`A conventional digital camera is able to record captured images on a memory card (external
`recording device consisting of semiconductor memory) (see, for example, Patent Documents
`1 and 2).
`
`[0003]
`
`[Patent Document 1]
`
`JP H07-135589 A
`
`[Patent Document 2]
`
`JP 2001-169224 A
`
`[Problem to be Solved by the Invention]
`
`However, a conventional digital camera is inconvenient to use because the recorded content
`of a memory card cannot be checked without inserting the memory card into the card slot.
`This problem is not limited to digital cameras but is a problem affecting other types of
`imaging devices such as digital video cameras and mobile phones with a built-in camera.
`
`[0004]
`
`4
`
`IPR2020-00343 Page 00005
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`

`

`JP 2004-350160 A 2004.12.9
`
`It is an object of the present invention to solve this problem by providing an imaging device
`that enables a user to easily check the recorded content of a card even when the card is not
`inserted into a card slot.
`
`[0005]
`
`[Means for Solving the Problem]
`
`In order to achieve this object, the present invention provides an imaging device comprising
`a wired communication means able to conduct wired communication with a memory card, a
`wireless communication means able to conduct wireless communication with a memory
`card, and a display means for displaying an image, wherein the imaging device continues to
`display image information from a first memory card for a first predetermined period of time
`when wireless communication with the first memory card has been interrupted while
`reading and displaying image information from the first memory card using the wireless
`communication means.
`
`[0006]
`
`[Examples]
`
`The following is a detailed description of an example of the present invention with reference
`to the drawings. In the following explanation, the term image refers to either a still image
`or video except where otherwise noted. In other words, image may refer exclusively to still
`images, exclusively to video or to both, and the present example may be applied to any of
`these. In the present example, there are no particular restrictions on the image
`compression method or amount of data in each image.
`
`[0007]
`
`FIG. 1 is a schematic block diagram of an example of the present invention. Each unit in the
`imaging device 100 is connected via a bus 111, and each unit is controlled by a CPU 107.
`The imaging device 100 has a recording mode and a playback mode. The imaging device
`100 may be a digital video camera, a digital camera, or a mobile phone with a built-in
`camera.
`
`[0008]
`
`The recording mode will be explained first. When the imaging device 100 is operating in
`recording mode, a program stored in flash memory 109 is loaded into RAM 108. The CPU
`107 then operates in accordance with the program loaded into RAM 108. A lens unit 101, an
`imaging element 102, and an image signal processing circuit 103 are controlled by an
`imaging unit control circuit 104 controlled, in turn, by the CPU 107 to perform the imaging
`operations described below. Light from a subject forms an image on the imaging element
`102 via the lens unit 101. Images formed on the imaging element 102 are subjected to
`photoelectric conversion and read on a predetermined cycle. The image signal processing
`circuit 103 subjects an image read from the imaging element 102 to predetermined
`processing and outputs digital image data (video or still image data).
`
`[0009]
`
`5
`
`IPR2020-00343 Page 00006
`
`

`

`JP 2004-350160 A 2004.12.9
`
`When the user records images using operating switches 105, an image
`compression/decompression device 106 compresses digital images outputted from the
`image signal processing circuit 103 using a compression method such as JPEG and MPEG.
`The compressed image data is stored temporarily in RAM 108 and recorded on a memory
`card 120 for image recording via a memory interface 112 and connector 113. This is
`recorded on the memory card 120 along with a thumbnail of each image, date and time
`information on when each image was captured, date and time information on when each
`image was recorded, and file names for each image, which are used to index images. The
`memory card 120 is an external recording medium consisting of semiconductor memory.
`
`[0010]
`
`The playback mode will now be explained. When the imaging device 100 is operating in
`playback mode, a program stored in flash memory 109 is loaded into RAM 108. The CPU
`107 then operates in accordance with the program loaded into RAM 108.
`
`[0011]
`
`When operating in playback mode, image information in a memory card 120 (thumbnails,
`date and time information, file names, etc.) is read and displayed as image indexing
`information on the display 110 as shown in FIG. 4 (A) if the memory card 120 is connected
`to the connector 113 (memory card slot) as indicated in Operation 1 (wired communication
`mode) in FIG. 3.
`
`[0012]
`
`When the user has selected a specific image from the image indexing information and has
`issued a display command using the operating switches 105, the CPU 107 reads the
`compressed image data for the image from the memory card 120. The retrieved
`compressed image data is decompressed by the image compression/decompression device
`106, and the image is displayed on the display 110.
`
`[0013]
`
`As indicated in Operation 2 (wireless communication mode) in FIG. 3, power is supplied to
`the memory card 120 via the antenna 116 when the memory card 120 is brought close to or
`brought into contact with the antenna 116. At the same time, communication is established
`between the antenna 116 and the memory card 120, and image information on the memory
`card 120 (thumbnails, date and time information, file names, etc.) is read via the modem
`115. Because communication speeds via the antenna 116 are slower than via the connector
`113, the volume of communication, that is, the amount of image information that can be
`read, is limited. The display of image information on the display 110 is also different
`compared to when the image information is retrieved via the connector 113.
`
`[0014]
`
`FIG. 2 is a schematic block diagram of a memory card 120 and the communication units in
`the imaging device 100. The memory card 120 may be accessed in wired communication
`mode or wireless communication mode.
`
`[0015]
`
`6
`
`IPR2020-00343 Page 00007
`
`

`

`JP 2004-350160 A 2004.12.9
`
`The wired communication mode will be explained first. The wired communication mode is
`entered when connector 211 is connected to connector 113 in the imaging device 100. In
`the wired communication mode, control circuit 213 controls the entire card. Control circuit
`213 communicates with the imaging device 100 via the communication interface 212, and
`writes data to and reads data from memory circuit 214 and memory circuit 221 in
`accordance with communication commands from the imaging device 100.
`
`[0016]
`
`Prior to the communication operations, a supply of power is received from connector 113 in
`the imaging device 100 via connector 211. The supply of power via connector 211 is
`supplied to each unit in block 202 by power supply circuit 215 and to memory circuit 221 by
`power supply selection circuit 222.
`
`[0017]
`
`In the wired communication mode, data can be written to and read from memory circuit
`214 and memory circuit 221 as mentioned above.
`
`[0018]
`
`The wireless communication mode will now be explained. In wireless communication mode,
`control circuit 220 controls the entire card. In wireless communication mode, the memory
`card 120 is operated without establishing wired communication via the connector 211.
`Instead, wireless communication is established with the imaging device 100 via the
`antennas 216, 217.
`
`[0019]
`
`Prior to the wireless communication operations described below, the imaging device 100
`supplies power to the power supply circuit 223 by electromagnetic induction via the antenna
`217.
`
`[0020]
`
`Data to be sent from the imaging device 100 to the memory card 120 is modulated by the
`modulator 232 in the imaging device 100 and outputted wirelessly from the antenna 234.
`These wireless signals are received by the antenna 217 in the memory card 120, modulated
`by the demodulator 219, and the data from the imaging device 100 is supplied to the
`control circuit 220. Meanwhile, data to be sent from the control circuit 220 to the imaging
`device 100 is modulated by the modulator 218 in the memory card 120 and outputted
`wirelessly from the antenna 216. These wireless signals are received by the antenna 233 in
`the imaging device 100, demodulated by the demodulator 231, and the data from the
`memory card 120 is supplied to the CPU 107.
`
`[0021]
`
`In the wireless communication mode, power is supplied from power supply circuit 223 only
`to block 1, and power is simultaneously supplied to memory circuit 221 via power supply
`selection circuit 222. Control circuit 220 writes data to and reads data from memory circuit
`221. In the wireless communication mode, power is supplied to block 2. Memory circuit 221
`can perform read and write operation even when a small amount of power is obtained via
`electromagnetic coupling.
`
`7
`
`IPR2020-00343 Page 00008
`
`

`

`JP 2004-350160 A 2004.12.9
`
`[0022]
`
`In a memory card 120 with this configuration, memory circuit 214 is primarily used to
`record captured images and thumbnails thereof that require a large amount of capacity and
`power, and memory circuit 221 is ideally used to record image information (small
`thumbnails, data and time information on when images were captured, data and time
`information on when images were recorded, image file names, etc.) that does not require
`much capacity or power. However, memory circuits 214 and 221 are not restricted to this
`division of labor. The memory circuits 214, 221 can be configured in any way to record
`data.
`
`[0023]
`
`The memory circuits 214, 221 may also be configured using non-volatile memory such as
`flash memory, EEPROM or dielectric memory. While not depicted in the figures, they may
`also be configured using, for example, SRAM with battery backup. Any storage means other
`than memory may be used as long as data can be retained.
`
`[0024]
`
`The startup sequence for the memory card 120 will now be explained with reference to FIG.
`9. Beginning from S901, it is determined in S902 whether or not power is being supplied via
`the connector 211. If power is being supplied via the connector 211 (Y), the process
`advances to S903. If power is not being supplied (N), the process advances to S907. In
`S903, power is supplied from power supply circuit 215 via the connector 211 to block 202,
`memory circuit 214, and memory circuit 221. Control circuit 213 is started up in S904, and
`data is read from and written to memory circuit 221 and memory circuit 214 and wired
`communication conducted with external units under the control of control circuit 213 in
`S905. This is the process for transitioning to wired communication mode (S906).
`
`[0025]
`
`If the result is N in S902, it is determined in S907 whether or not power is being supplied by
`electromagnetic induction via the antenna 217. If power is being supplied (Y), the process
`advances to S908. If power is not being supplied (N), the process advances to S912. In
`S908, power is supplied from power supply circuit 223 via the antenna 217 to block 223 and
`memory circuit 221. Control circuit 220 is started up in S909, and data is read from and
`written to memory circuit 221 and wireless communication conducted with external units
`under the control of control circuit 220 in S910. This is the process for transitioning to
`wireless communication mode (S911).
`
`[0026]
`
`If the result is N in S907, the card is turned OFF in S912.
`
`[0027]
`
`FIG. 4 (A) is an example of image information being displayed on the display 110 in wired
`communication mode. Because communication speeds are fairly high in wired
`communication mode, nine large thumbnails are displayed. FIG. 4 (B) to FIG. 4 (E) are
`examples of imaging information being displayed in wireless communication mode. Because
`communication speeds are fairly low in wireless communication mode, the amount of data
`
`8
`
`IPR2020-00343 Page 00009
`
`

`

`JP 2004-350160 A 2004.12.9
`
`communicated is lower. FIG. 4 (B) is an example of thumbnails smaller than those in FIG. 4
`(A) being displayed. FIG. 4 (C) is an example of thumbnails even smaller than those in FIG.
`4 (A) being displayed. FIG. 4 (D) is an example of recorded content on the memory card
`being displayed in the form of memory card recording dates and numbers of various types
`of files instead of individual image information. FIG. 4 (E) is an example of recorded content
`being displayed in the form of individual image dates and file names.
`
`[0028]
`
`The following is an explanation of the writing of data to the memory card 120. FIG. 5 shows
`the algorithm when data is written to the memory card 120 by the imaging device 100 in
`the wired communication mode. Beginning from S501, the device remains in standby in
`S502 until the shoot button (not shown) among the operating switches 105 is pressed.
`When the shoot button has been pressed, the process advances to S503 where the image
`capturing operation is performed by the CPU 107 via the imaging unit control circuit 104.
`Next, in S504, captured image data is stored in memory circuit 214 in the memory card as
`described above. Then, in S505, a large thumbnail image is recorded in memory circuit 214
`in the memory card as described above. In S505, a small thumbnail image is also recorded
`in memory circuit 221. In S506, image information other than thumbnails (such as data and
`time information on when the image was captured and file name information) is recorded in
`memory circuit 221 and the device returns to standby mode.
`
`[0029]
`
`The following is an explanation of the reading of data from the memory card 120. FIG. 6
`shows the operational algorithm of the CPU 107 when image information on the memory
`card is displayed by the imaging device 100 on the display 110 in wired communication
`mode and wireless communication mode.
`
`[0030]
`
`Beginning from S601, it is determined in S602 whether or not a memory card #1 has been
`connected in wireless communication mode. (In order to differentiate between multiple
`memory cards, the cards are numbered #1, #2 and #3 below.) If a card has not been
`connected in wireless mode (N), the process advances to S603. If a card has been
`connected wirelessly (Y), the process advances to S605.
`
`[0031]
`
`In S603, it is determined whether or not another memory card #2 has been connected in
`the card slot in wired communication mode. If a card has been connected in wired mode
`(Y), the process advances to S604. If a card has not been connected in wired mode (N), the
`process advances to S602. In S604, image information is retrieved from memory circuit 221
`and memory circuit 214 in memory card #2 and displayed on the display 110.
`
`[0032]
`
`If the result is Y in S602, image information is read from memory circuit 221 in memory
`card #1 and displayed on display 110 in S605. In S606, it is determined whether or not the
`wireless connection with memory card #1 has been interrupted. If the wireless connection
`has not been interrupted (N), the process returns to S605. If the wireless connection has
`been interrupted (Y), the process advances to S607.
`
`9
`
`IPR2020-00343 Page 00010
`
`

`

`JP 2004-350160 A 2004.12.9
`
`[0033]
`
`In S607, it is determined whether or not memory card #2 has been inserted into the card
`slot and a connection established in wired communication mode. If a wired connection has
`been established (Y), the process advances to S608. If a wired connection has not been
`established (N), the process advances to S610.
`
`[0034]
`
`In S608, the process enters standby for a predetermined period of time T2. The process
`advances to S609 after predetermined period of time T2 has elapsed. In S609, information
`is read from memory circuit 221 and memory circuit 214 in memory card #2 and displayed
`on the display 110.
`
`[0035]
`
`If the result is N in S607, the process enters standby in S610 for a predetermined period of
`time T1. The process advances to S611 after predetermined period of time T1 has elapsed.
`In S611, the display of information recorded in memory circuit 221 of image recording card
`#1 is ended. Here, T1 and T2 are set so that T2 < T1. In other words, when there is more
`information to display on display 110, the display of information occurs over a short period
`of time (T2). When there is no more information to display, the display continues for a
`longer period of time (T1).
`
`[0036]
`
`The following is an explanation of other operations performed to read data from the
`memory card 120. FIG. 7 shows the operational algorithm of the CPU 107 when image
`information on the memory card is displayed by the imaging device 100 on the display 110
`in wireless communication mode.
`
`[0037]
`
`Beginning from S701, it is determined in S702 whether a connection has been established
`with memory card #1 in wireless communication mode. If the card has not been connected
`in wireless mode (N), the process advances to S702. If the card has been connected
`wirelessly (Y), the process advances to S703. Image information is read from memory
`circuit 221 in memory card #1 and displayed on display 110 in S703. In S704, it is
`determined whether or not the wireless connection with memory card #1 has been
`interrupted. If the wireless connection has not been interrupted (N), the process returns to
`S703. If the wireless connection has been interrupted (Y), the process advances to S705.
`
`[0038]
`
`In S705, it is determined whether a wireless connection has been established with another
`memory card #3. If a wireless connection has been established (Y), the process advances to
`S707. If not (N), the process advances to S706.
`
`[0039]
`
`In S706, the process enters standby for a predetermined period of time T1. If
`predetermined period of time T1 has not been reached, the process returns to S705. If
`predetermined period of time T1 has been reached, the process advances to S707. In S707,
`
`
`
`10
`
`IPR2020-00343 Page 00011
`
`

`

`JP 2004-350160 A 2004.12.9
`
`the display of information recorded in memory circuit 221 of image recording card #1 is
`ended. In other words, when communication has been interrupted and there is more
`information to display on the display 110 after communication is re-established, the display
`of information is ended even while displayed during the predetermined period of time (T1).
`However, when there is no more information to display as communication has not been re-
`established, the information continues to be displayed for predetermined period of time
`(T1).
`
`[0040]
`
`The following is an explanation of other operations performed to read data from the
`memory card 120. FIG. 8 shows the operational algorithm of the CPU 107 when image
`information on the memory card 120 is displayed by the imaging device 100 on the display
`110 in wired communication mode and wireless communication mode.
`
`[0041]
`
`Beginning from S801, it is determined in S802 whether or not memory card #1 has been
`connected in wireless communication mode. If the card has not been connected in wireless
`mode (N), the process advances to S803. If the card has been connected wirelessly (Y), the
`process advances to S805.
`
`[0042]
`
`In S803, it is determined whether or not memory card #2 has been connected in the card
`slot in wired communication mode. If the card has been connected in wired mode (Y), the
`process advances to S804. If the card has not been connected in wired mode (N), the
`process advances to S802. In S804, image information is retrieved from memory circuit 221
`and memory circuit 214 in memory card #2 and displayed on the display 110.
`
`[0043]
`
`If the result is Y in S802, image information is read from memory circuit 221 in memory
`card #1 and displayed on display 110 in S805. In S806, it is determined whether or not the
`main unit has been operated in relation to memory card #2 connected in wired connection
`mode (such as selection of a thumbnail or moving to the next page) while information from
`memory card #1 is being displayed.
`
`[0044]
`
`When the main unit has been operated (Y), the process advances to S807. When the main
`unit has not been operated (N), the process advances to S809. In S807, image information
`is read from memory circuit 221 and memory circuit 214 in memory card #2 and displayed
`on the display 110 and manipulated based on operation of the main unit. After remaining in
`standby for a predetermined period of time T4 in S808, the process returns to S802 and
`these steps are repeated.
`
`[0045]
`
`In S809, it is determined whether or not the wireless connection with memory card #1 has
`been interrupted. If the wireless connection has not been interrupted (N), the process
`returns to S805. If the wireless connection has been interrupted (Y), the process advances
`to S810.
`
`11
`
`IPR2020-00343 Page 00012
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`

`

`JP 2004-350160 A 2004.12.9
`
`[0046]
`
`In S810, it is determined whether or not memory card #2 has been inserted into the card
`slot and a connection established in wired communication mode. If a wired connection has
`been established (Y), the process advances to S811. If a wired connection has not been
`established (N), the process advances to S812. In S811, information is read from memory
`circuit 221 and memory circuit 214 in memory card #2 and displayed on the display 110.
`
`[0047]
`
`In S812, it is determined whether a wired connection has been established with another
`memory card #4 in the card slot. If a wired connection has been established (Y), the
`process advances to S813. If not (N), the process advances to S814. In S814, it is
`determined whether or not the main unit has been operated in any way. When the main
`unit has been operated (Y), the process returns to S802. When the main unit has not been
`operated (N), the process advances to S815.
`
`[0048]
`
`In S815, standby is entered for a predetermined period of time T3. If standby in
`predetermined period of time T3 has not ended (N), the process returns to S812. If standby
`in predetermined period of time T3 has ended (Y), the process returns to S816. In S816,
`the display of information recorded in memory circuit 221 in image recording card #1 is
`ended.
`
`[0049]
`
`In other words, this takes priority when the main unit is operated during a wireless
`communication, and information manipulated by the operation is displayed for a
`predetermined period of time (T4). When there is more information to be displayed after
`wireless communication has been interrupted, the previous display of information ends
`immediately. When there is no more information to be displayed after wireless
`communication has been interrupted, the display of information continues for a
`predetermined period of time (T3). When the main unit is operated while this information is
`being displayed, the display of information during the predetermined period of time (T3) is
`cancelled.
`
`[0050]
`
`[Effects of the Invention]
`
`As explained above, the present invention has a wireless mode and a wired mode, uses the
`wired more for high speed recording and playback, and uses the wireless mode only to read
`image information. In this way, a very easy-to-use camera system can be realized in which
`the content of a card can be checked simply by bringing the card into contact with the
`camera unit.
`
`[0051]
`
`Because a minimum amount of power is used when the system is operating wirelessly, the
`size of the antenna can be reduced and power can be saved. Because information continues
`
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`JP 2004-350160 A 2004.12.9
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`to be displayed for a predetermined period of time when the content of a card is being
`checked wirelessly, an easy-to-use user interface can be realized.
`
`[0052]
`
`In this way, an easy-to-use user interface can be realized whether the card is mounted in
`the main unit or exchanging information wirelessly.
`
`[Brief Description of the Drawings]
`
`[FIG. 1]
`
`FIG. 1 is a schematic block diagram of an example of the present invention.
`
`[FIG. 2]
`
`FIG. 2 is a schematic block diagram of a memory card 120.
`
`[FIG. 3]
`
`FIG. 3 is a schematic diagram used to explain the wireless communication mode and wired
`communication mode.
`
`[FIG. 4]
`
`FIG. 4 is an example of information display in the present example.
`
`[FIG. 5]
`
`FIG. 5 is an operation flow chart for the present example.
`
`[FIG. 6]
`
`FIG. 6 is an operation flow chart for the present example.
`
`[FIG. 7]
`
`FIG. 7 is an operation flow chart for the present example.
`
`[FIG. 8]
`
`FIG. 8 is an operation flow chart for the present example.
`
`[FIG. 9]
`
`FIG. 9 is an operation flow chart for the present example.
`
`[Key to the Drawings]
`
`100: Imaging device
`101: Lens unit
`102: Imaging element
`103: Imaging signal processing circuit
`
`
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`JP 2004-350160 A 2004.12.9
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`104: Imaging unit control circuit
`