Patent Application
20070296832
Those and other objects, features and advantages of the present invention will become more apparent from the following description when taken in conjunction with the accompanying drawings wherein:
a) and 4(b) show an example of outlook (1) of the video camera;
Hereinafter, embodiments according to the present invention will be fully explained by referring to the attached drawings. Although being preferable, in particular, for a video camera, being required to be small in the sizes and dealing with a plural number of recording media therein, however not limited only to this, the present invention is also applicable to other apparatuses than the video camera, each of which has a recording apparatus and an operating portion thereof. Also, the video camera means an apparatus for photographing moving pictures, however not needed to be exclusive use for the moving picture, but it may take a still picture therewith.
(1) Structures of Video Camera
a) and 4(b) and 8 show an example of outlook of a digital video camera, i.e., being a photographing apparatus.
On a rear portion (i.e., on a side of a photographer) is arranged a power/mode exchange switch 24 for use of turning ON/OFF of an electric power and exchange the mode thereof. Thus, it is located at such a position that the switch can be operated with a thumb when a user holds the video camera on her/his hand, with passing a hand through a belt 31. Also, a lock switch 8 is provided on a rear portion, to be operable with the thumb, in the similar manner. A shutter button 32 for photographing a still picture, a power-save button 33 for turning the camera into a power saving condition differing from a turning-OFF of an electric power and also for releasing from that power saving condition, and a zoom button 34 for indicating zoom-up and zoom-down of a picture to be photographed are disposed in such the position that a thumb can reach thereto, when a user or an operator holds the camera (i.e., when she/he holds the camera with passing her/his right hand through a belt 31), in particular, when photographing. The shutter button 32 is able to detect the conditions of a full pushdown and a half pushdown, and the function thereof will be mentioned later. A reference numeral 40 depicts a lens for condensing the lights of a target to be photographed. A reference numeral 41 depicts a viewfinder portion for displaying the image or picture, which is signalized on the image pickup element through the lens 40.
A reference numeral 42 depicts a battery, being charged from an AC power source, for supplying the electric power to the video camera.
Also, there are disposed a dubbing button 37 for making an instruction of dubbing from HDD to DVD, a disk navigation button 38 to display a navigation screen, for editing the video files photographed, a cursor button 39 for moving a cursor up and down and right and left, a reproduce button 43 at a central portion of the cursor button 39, for indicating reproduction and/or determination of the picture, a stop button 44 for indicating reproduction and/or deletion of the picture, and a menu button 45 for displaying various kinds of menus on the side-surface display portion 35.
Under the condition where the side-surface display portion 35 is turned to an outside, as is shown in
In an image pickup portion 21 for photographing the picture, a zoom and an iris of lens(es) are controlled by a system controller portion 25, the photographed picture is converted into an electric signal through the image pickup element (a CCD (Charged Coupled Devices) sensor or a CMOS (Complementary Metal Oxide Semiconductor) sensor). And, after being processed with a noise removal and a signal amplification thereon, it is A/D converted into a digital signal.
The digital signal outputted from the image pickup portion 21 is treated with various signal processes, such as, a noise removal, etc., within a video process portion 22, to be a digital video signal. The digital video signal outputted from the video process portion 22 is superposed with character information or the like within the system controller portion 25, and is transmitted to the side-surface display portion 35 and/or the view finder portion (EVF: Electric View Finder), etc., thereby displaying the picture under photographing thereon. Further, an image display portion 27 may be a display, such as, an ELD (Electro Luminance Display), other than a LCD.
Further, the digital video signal outputted from the video process portion 22 is also transmitted to a coding/decoding process portion 23, so as to be compressed and coded, in accordance with a method of MPEG 2 (Moving Picture Experts Group 2), when it is the moving picture, and thereafter, it is recorded in a HDD 28, as a first recording portion, or in a DVD drive 29, as a second recording portion, depending upon a mode selected.
On the other hand, when it is a still picture, it is compressed in accordance with a method of JPEG (Joint Photographic Experts Group), and is recorded into a memory card 30.
In this manner, as the recording portion enabling to record the moving picture, there are provided two (2) drives, i.e., the HDD 28 and the DVD drive 29. Herein, according to the present embodiment, it is possible to drive a disk of 1.8 inch and a memory capacity of 8 GB as the HDD 28, while a DVD disk of 8 cm as the DVD. However, the memory capacity of the 8 cm DVD is about 1.4 GB on a one (1) layer, in the case of the DVD-RAM (Random Access Memory), for example.
The power/mode exchange switch 24 is a portion for turning ON the electric power, and it builds up a switch, having functions of turning ON/OFF of the electric power and of exchanging the mode, for the user to make selection on the recording portion which conducts recording or reproducing. When the power/mode exchange switch 24 is moved from the position of turning OFF the power to the position other than that, the electric power is turned ON, and therefore electric power is supplied from an electric power supply portion 26 to every portion of the present digital video camera. Thereafter, the system controller portion 25 confirms the position of the power/mode exchange switch 24, and it determines the recording portion to be started depending upon the position selected, so as to execute the initialization process under that selected mode. On the other hand, when it is moved to the position of turning the electric power OFF, then after confirming the completion of finishing processes for every portions, the system controller portion 25 sends a control signal of turning the electric power OFF to the electric power supply portion 26; thereby coming into the condition of turning the electric power OFF.
When a HDD-mode selection display 6 reaches to the position of the reference mark 3 while the user rotates the dial portion 1 into the clockwise direction, the electric power is turned ON and the video camera starts the initialization under the HDD mode for operating the HDD 28 to be the recording portion. Further rotating the dial portion into the clockwise direction, and when a DVD-mode selection display reaches to the position of the reference mark 3, then in the similar manner, the video camera starts the initialization under the DVD mode. However, when the user rotates slides a lock switch 8 from the position shown in
Among a plural number of recording media, the initialization time (i.e., the time-period from when it is in un-recordable condition to when it comes to be recordable) for each of them differs from one another. For example, the initialization time of the HDD 28 is shorter than that of the DVD drive 29, which necessitates an adjustment of power for an optical pickup, etc. Then, the power/mode exchange switch 24 is so arranged that, in the order of selection, the HDD mode comes to the switch position to be selected first when the user makes an operation for turning the power ON, and the switch position to be selected thereafter is the DVD mode. With applying such the structures of the switch, when turning the power ON, it is possible to start the HDD mode with the operation earlier than that for initializing the DVD drive, and for the user who wishes to take a picture earlier, it is possible to bring the camera to be recordable, earlier, by initializing the hard disk; therefore it is possible to reduce a possibility of loosing a chance to take an important scene for the user.
Also, with the digital video camera provided with two (2) pieces of recording portions, such as, the HDD and the DVD drive, for example, expectation can be made that the frequency of using the camera under the HDD mode comes to be large, due to the ways of using, i.e., while recording is made onto the HDD, normally, dubbing is made on necessary pictures or images thereof. Then, it is preferable to arrange the power/mode exchange switch 24, so that it always passes through the HDD mode, first, when operating the power ON.
Also, in case of the DVD drive, in particular, when no DVD disk is inserted therein, it is necessary to insert a DVD disk, and insertion of the DVD disk takes a time, then as a result, the user looses a chance to take an important scene; however, the camera having the built-in HDD also brings about an advantage that the user can record the important scene soon, when she/he starts the camera.
However, in
Also, in the case where the video camera is connected with external equipment, such as, a personal computer (PC), etc., through an interface (a transmission portion) of the video camera, by means of a USB cable, for example, the video camera appears differently, i.e., as the DVD drive or the HDD, on that external equipment, depending on the mode of the switch 24. When selection is made on the DVD mode (i.e., the position of “7”), the camera sends a signal so that it appear to be the DVD drive on the external equipment. Also, it sends the signal so that it appears to be the HDD on the external equipment, when selection is made on the HDD mode (i.e., the position of “6”). However, herein if data is memorized onto the HDD in the form of UDF (Universal Disk Format), in particular, for the PC, it is impossible to recognize it to be the HDD, but recognizes it to be the DVD drive. Then, for enabling distinction that the camera is connected under the HDD mode but not the DVD mode if the HDD memorizes data in the form of UDF, it is preferable to send the information indicating that it is a hard disk drive (for example, a volume label, or an icon).
(2) Initialization Time of Video Camera
Explanation will be made about the initialization timing of the HDD 28 and the DVD drive 29, by referring to
In case when the user operates the power/mode exchange switch 24, in order to record the picture or image from the image pickup portion 21, the present video camera initializes the system thereof when reaching to the time (T1) of rotating the power/mode exchange switch 24 from the position of power OFF to the position for selecting the HDD mode, and after elapsing a time (T1+Ts), the initialization is started on the HDD 28. Thereafter, after elapsing the time (T1+Ts+Th) adding the initialization time for the HDD 28 thereto, it is possible to make recording onto the HDD 28. As was explained in the above, in case where the HDD is earlier than the DVD drive in the initialization time, with arrangement of the HDD mode, being short in the initialization time, at the position to be near side thereto in exchanging operation of the switch from the power OFF, it is possible to select the HDD mode earlier when making an operation of the power ON, and therefore the time until the time when the camera comes to be photographable is short enough, comparing to the case where the time is opposite thereto. Accordingly, since a waiting time can be shorten or reduced until when the camera comes to be photographable after operation of tuning the power ON, for the user, it is possible to reduce the possibility of loosing the chance of taking a picture of the important scene, and thereby improving or increasing the usability thereof.
Also, in case when recording under the DVD mode, firstly the system of the present video camera is initialized when the power/mode exchange switch 24 is shifted from the position of power OFF to the position for selecting the HDD mode. Further, when the power/mode exchange switch 24 is rotated to the position for selecting the DVD mode (T2), the DVD drives 29 starts the initialization. Thereafter, after elapsing the time (T2+Td) adding the initialization time “Td” of that VD drive 29 thereto, recording is possible to the HDD 28. Thus, since the arrangement is made on the switch so that it passes through the position for selecting the HDD mode, for selecting the DVD mode, the power supply is already started and the system controller portion 25 starts the operation thereof, when the switch enters in the position for selecting the HDD mode (T1). Therefore, it takes only the initialization time “Td” of the DVD drive 29, even after moving the power/mode exchange switch 24 to the position for selecting the DVD mode at the time Ts<T2, after using the camera with recording under the HDD mode. Accordingly, the waiting time after when the power/mode exchange switch 24 enters in the position for selecting the DVD mode until when recording is possible to the DVD (=an apparent initialization time under the DVD mode) is only “Td”; therefore, it can be shorten by the time “Ts” comparing to the technology of initializing the system after when selection is made on the DVD mode.
However,
However, in the present embodiment, although the explanation was given on the case where the HDD and the DVD drive are provided, but the present invention should not be restricted to this, it is applicable into an apparatus comprising the recording portions in plural numbers thereof, each having the recording function. For example, the optical disk should not be restricted to the DVD, but it may be other optical disks, such as, a BD (a Blue-ray Disc) or a HD(High Definition)-DVD, etc. Also, the combination of the recording portions should not be restricted only to the HDD and the optical disk, but it may be a combination of the optical disk and a semiconductor memory.
(3) Function of Shutter Button
Upon operation on the apparatus of multi-functions, such as, the video camera according to the present embodiment, having a dubbing function, a function for editing the picture, and a function of photographing the moving picture and the still picture with mounting a plural number of recording media thereon, etc., demand is made on a button having various functions. However, provision of many of those buttons brings about large-sizing of the portable camera. Then, some of the buttons are shared with the plural number of functions, and are controlled to execute different functions depending upon the mode.
For example, the zoom button 34 indicates the zoom-up and -down when the camera is in the recording (i.e., a photographing) mode, but it has a function for indicating an up/down of a sound volume during when it reproduce the moving picture recorded.
In particular, with the present embodiment, detection is made between a full pushdown (i.e., pushing down the button projecting convex-like down to a predetermined position) and a semi or half pushdown (i.e., pushing down the button on the way, but not down to the position of the full pushdown), so that also the plural numbers of functions are shared with the button (for example, the shutter button 32), which can execute different functions depending on the time when being in the semi-pushdown and the time when in the full-pushdown).
Then, when slowly pushdown such the button, two (2) times of pushdowns are detected in total, i.e., one (1) time when it is pushed down to the semi-pushdown position and another one (1) time when it is down to the full-pushdown position. In case when sharing this button with the functions, which are common with the semi-pushdown and the full-pushdown under a certain mode (for example, a select/release button), it causes a problem. For example, if it responds to both the full-pushdown and the semi-pushdown, then detection is made that the select/release function is pushed down two (2) times, then selection is made when it is at the semi-pushdown position and that selection is released when it is at the full-pushdown position. Thus, although the user pushes down the button, with an intention to select the picture, but both the selection and the release are executed, and therefore, selection cannot be made on the picture. Also, when the button is made responsive only to the full-pushdown position, no response can be obtained unless pushing down the button deeply; therefore, it brings about inferior operability, on the other hand when it is made responsive only to the semi-pushdown, then no response can be obtained unless pushing down the button slowly; therefore, it also brings about inferior operability.
Then, according to the present embodiment, control is made as is shown in
“Mode Type” indicates a kind of the mode of the video camera. Under any one of the conditions where the positions 5, 6 and 7 shown in
Under “Record Mode”, when pushing down the shutter button to the semi-pushdown position, focus onto an object to be photographed is locked due to an auto-focus function. When pushing down the shutter button to the full-pushdown position, it is possible to photograph a still picture.
Under “Reproduce Mode”, when the shutter button 32 is pushed down to the semi-pushdown position and also when it is pushed down to the full-pushdown position, both cases are assumed to an indication to execute a still picture capture function for storing the still picture separately from the pictures under reproduction. Herein, since there is a problem of pushing down the shutter button two (2) times for the shutter button 32, as was mentioned previously, determination is made on whether the semi-pushdown is detected or not before, when the shutter button 32 is pushed down to the full-pushdown position. If the semi-pushdown is detected, then determination is made on whether that semi-pushdown is released or not, through releasing of the pushdown due to removal of the finger put on the shutter button 32, etc. In case when no semi-pushdown is detected, or when detected but it is released, the still picture capture function is made effective.
Under “Navigation Mode”, both cases, when the shutter button 32 is pushed down to the semi-pushdown position and also when down to the full-pushdown position, are assumed to be an indication to execute the select/release function, to select an arbitrary picture among the pleural number of pictures recorded, and to release that selection of the picture selected. In case when the shutter button is pushed down to the full-pushdown position, determination is made on whether the semi-pushdown is detected or not before. If the semi-pushdown is detected, then determination is made on whether that semi-pushdown is released or not, through releasing of the pushdown due to removal of the finger put on the shutter button 32, etc. In case when no semi-pushdown is detected, or when detected but it is released, the full-pushdown is made effective, and then executes the select/release function.
Though mentioned that determination is made on whether that semi-pushdown is released or not, in the embodiment mentioned above, but in the place thereof, it is also possible to make determination on whether the semi-pushdown is continued or not.
Also, when the full-pushdown is ineffective, it is assumed to be invalid, and the no execution is made on the functions (i.e., neglect the full-pushdown).
Controlling in this manner enables to use the buttons of the video camera, effectively.
Explanation will be made on an embodiment 2, wherein it differs from the embodiment 1 in a shape of the power/mode exchange switch 24.
In
Under the condition of the power OFF, i.e., when the reference mark 103 is positioned at the OUT-mode select display 104 (ST01), and when detection is made that the user moves the dial portion 101 into the clockwise direction, to enter into the IN-mode select display 109 (ST02), then electric power is supplied from the power supply portion 26 to every parts, and therefore the system controller portion 25 stars the operation, and thereby initializing the camera under the HDD mode (ST03). Within this digital camera, similar to that of the embodiment 1, since the initialization time of the HDD is shorter than that of the DVD drive, the system is so constructed that the HDD mode will be selected first. Also, it is constructed that the memory card is selected at the last, however since the initialization time of the memory card is shorter than that of the HDD, therefore it is possible to select the memory card first.
When detecting the dial portion 101 is moved into the clockwise direction and is pushed down into “Mode Arrow Mark” 110 (i.e., “Mode Arrow” in ST04), the camera is initialized under the DVD mode, while stopping the initialization of the HDD (ST05). Further, when detecting that it is pushed down to the “Mode Arrow Mark” 110 (i.e., “Mode Arrow” in ST06), the camera is initialized under the memory card mode, while stopping the initialization of the DVD drive (ST07). Further, when detecting the dial portion 101 is pushed down into “Mode Arrow Mark” 110 (i.e., “Mode Arrow” in ST08), the process is turned back to the step ST03, thereby initializing the camera under the HDD mode again, while stopping the initialization of the memory card. However, in the steps ST02, 04, 06 and 08, when moving the reference mark 103 mentioned above to the position of the OUT-mode select display 104, then the process turns back to the step ST01, thereby falling into the condition of power OFF.
Explanation will be made on an embodiment 3, wherein it differs from the embodiment 1 in timing of starting the initialization of the DVD.
When initializing the DVD, the system of the present video camera starts the initialization at the time when the power/mode exchange switch 24 is shifted from the position of power OFF to the position for selecting the HDD mode, and further after elapsing the time (T1+Ts), initialization is started on the HDD 28 and the DVD drive 29. Thereafter, after elapsing the time (T1+Ts+Td) adding the initialization time of the DVD drive 29 thereto, the DVD drive 29 comes to be recordable. On the other hand, the user turns the power/mode exchange switch 24 further, for turning the it to the DVD position, and after the time (T2), the camera comes into the DVD mode.
In this manner, since the initialization of the DVD drive 29 is started prior to the time (T2), the waiting time after the user makes operation into the DVD position is shorten or reduced, comparing to the case when starting the initialization of the DVD drive 29 at the time T2.
Although the initialization process is conducted on the HDD 28 after changing the camera into the DVD mode at the time (T2) in the embodiment mentioned above, however the initialization process of the HDD 28 may be ended when it is changed into the DVD mode. Or, it is also possible that the HDD enters into the waiting mode being low in consumption of the electric power, after changing into the DVD mode at the time (T2), when the initialization process of the HDD 28 is completed.
While we have shown and described several embodiments in accordance with our invention, it should be understood that disclosed embodiments are susceptible of changes and modifications without departing from the scope of the invention. Therefore, we don not intend to be bound by the details shown and described herein but intend to cover all such changes and modifications that fall within the ambit of the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2006-161785 | Jun 2006 | JP | national |
