KR100725534B1 - Portable device having initializing function and a control method for initializing of the same - Google Patents

Abstract

Disclosed are a portable device having an initialization function and an initialization control method for the portable device. A portable device having an initialization function includes a memory, a key input unit provided with keys for setting the operation of the device, an engine unit capable of reading and outputting information recorded on the recording medium while rotating the mounted recording medium, and a power supply. When the power is supplied, the engine unit controls the attribute information recorded on the recording medium to be copied to the memory at the first reading speed set in conjunction with the power-on, but when a key signal is received from the key input unit before copying of the attribute information is completed, And a control unit for controlling the engine unit to read the attribute information at a second reading speed set to a high level and copy the attribute information to the memory. Accordingly, the portable device having the initialization function not only performs the initialization operation so that the minimum power is consumed when the portable device is powered on, but also increases the initialization speed when a command by the user is input before the initialization operation is completed. It is possible to minimize the waiting time of user command.

Portable devices, recording media, optical pickups, disc engines, engine drives, disc servos

Description

Portable device having an initialization function and a control method for initializing the portable device {Portable device having initializing function and a control method for initializing of the same}

1 is a plan view showing one surface of a DCD divided by recording area;

2 is a block diagram showing a schematic configuration of a digital device for DCD for reproducing / recording data in the DCD of FIG.

3 is a block diagram showing a schematic configuration of the DCD deck portion of FIG.

4 is a block diagram illustrating data exchange between a host and a register included in the DCD digital device of FIG. 2;

5 is a flowchart illustrating a file automatic playback method according to an embodiment of FIG. 3; and

6 is a flowchart illustrating a file automatic playback method according to another embodiment of FIG. 3.

Explanation of symbols on the main parts of the drawings

10: DCD 12: Hole

14: ID number recording area 16: data recording area

18: File system recording area 100: DCD digital device

120: engine portion 127: register portion                 

140: host

The present invention relates to a portable device and a method of controlling initialization of the portable device, and more particularly, to a portable device having an initialization function and an initialization control method of the portable device.

With the development of modern technology, useful devices for reproducing or restoring desired information regardless of time and place have been widely used. Among the devices that have been popularly presented are recording media such as magnetic tape, floppy disk (FD), compact disk (CD), and the like, and devices using the recording media. With the development of digital technology, these recording media are getting larger and the system is getting smaller and faster. The development of such recording media and systems, and the popularization of the Internet, enable individuals to acquire and store large amounts of information.

Recently, a recording medium having a large capacity of 500 megabytes compared to its size as a small disk having a diameter of 32 mm and a device for driving the recording medium (hereinafter referred to as a portable device) have been developed, thereby allowing a user to carry a large amount of information. It's easier to do.

As described above, since a large amount of information is stored on a recording medium (hereinafter referred to as a digital convergence disc), a user needs more time to retrieve and read predetermined information from the recording medium. Therefore, in order to solve such inconvenience, when the power is supplied to the portable device equipped with the recording medium or when the recording medium is newly inserted into the portable device, the attribute information recorded on the recording medium is stored in the memory in advance, and the predetermined information is stored. In the case of searching, the method to reduce the searching time by using the attribute information stored in the memory was sought.

However, the initialization control method of a portable device according to the prior art consumes a lot of unnecessary power since the initialization speed is maintained at the maximum speed of the portable device.

The present invention has been made to solve the above problems, to provide a portable device having an initialization function that can reduce the search time while reducing unnecessary power consumption of the portable device and an object of the initialization control method of the portable device. have.

A portable device having an initialization function according to an embodiment of the present invention for achieving the above object, in the portable device that reads and reproduces the information recorded on the removable recording medium, it can set the operation of the memory, the device A key input unit provided with a key, an engine unit capable of reading and outputting the information recorded on the recording medium while rotating the mounted recording medium, and when the power is turned on, at a first reading speed set in association with the power supply. The engine unit is controlled so that the attribute information recorded on the recording medium can be copied to the memory, but when a key signal is received from the key input unit before copying of the attribute information is completed, at a second reading speed set higher than the first reading speed. And a controller controlling the engine unit to read the attribute information and copy the attribute information to the memory. It shall be.

Here, the attribute information may include at least one of file name information about files recorded on the recording medium and location information on which the file is recorded.

On the other hand, according to an embodiment of the present invention, when the power supply to the portable device, rotating the recording medium at a first reading speed set to read the attribute information recorded on the recording medium in conjunction with the power supply, the Storing the attribute information read from the recording medium in the memory, and reading the attribute information when a key signal for setting the function of the portable device by the user is input before the operation of storing the attribute information in the memory is completed. There is provided an initialization control method of a portable device, the method comprising increasing the rotational speed of the recording medium to a second read speed set higher than the first read speed.

A portable device having an initialization function according to another embodiment of the present invention for achieving the above object, in the portable device that reads and reproduces the information recorded on the removable recording medium, the memory, the operation of the device can be set A key input unit provided with a key, an engine unit capable of reading and outputting the information recorded on the recording medium while rotating the mounted recording medium, and when the recording medium is inserted into the engine unit, The engine unit is controlled to copy the attribute information recorded on the recording medium to the memory at a first read speed, but is set higher than the first read speed when a key signal is received from the key input unit before copying of the attribute information is completed. A control unit which controls the engine unit to read the attribute information at a second reading speed and copy the attribute information to the memory; It characterized in that it comprises.

Here, the attribute information may include at least one of file name information about files recorded on the recording medium and location information on which the file is recorded.

On the other hand, according to another embodiment of the present invention, when a removable recording medium is inserted into a portable device, the recording medium is rotated at a first reading speed set to read attribute information recorded on the recording medium in association with the insertion. Storing the attribute information read from the recording medium in a memory; and when the key signal for function setting of the portable device is input by a user before the operation of storing the attribute information in the memory is completed, the attribute information. A method of controlling initialization of a portable device is provided, the method comprising increasing the rotational speed of the recording medium to read a second reading speed set higher than the first reading speed.

As a result, the portable device can reduce unnecessary power consumption in the initialization stage.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a plan view showing one surface of a double-sided recordable DCD divided by recording area. Referring to the drawings, the DCD 10 has a disc shape, and is divided into a hole 12, a unique number recording area 14, a data recording area 16, and a file system recording area 18 in the circumferential direction from the center of the disc. It is.

The hole 12 is formed in the central portion of the DCD 10, and mitigates the shaking while the DCD 10 is rotated. The unique number recording area 14 of the DCD 10 is formed in a ring type so as to occupy a predetermined range around the hole 12. In this unique number recording area 14, a unique number assigned to each DCD 10 is recorded in order to distinguish each DCD 10 from each other. In addition, the unique number recording area 14 includes identifiable information on one side and the other side of one DCD 10 according to the characteristics of the DCD 10 which is a double-sided recordable optical recording medium. The data recording area 16 is an area where files including music data, document data, video data, and the like are recorded and occupies most of the DCD capacity.

The file system recording area 18 is formed in a ring shape at the outermost part of the DCD 10, and information about each file recorded in the data recording area 16 of the DCD 10, namely, file system information and directory. The information is recorded. The file system information includes a file size, a file name, a recording date and time for a file recorded in the data recording area 16 of the DCD 10, a format of a recorded file, location information for recording each recorded file, and The last modified date and time of the file.

Directory information refers to a space separated to store files related to each other in a group. Unrelated files are not mixed by being stored in different directories.

FIG. 2 is a block diagram showing a schematic configuration of a digital device for DCD 100 for recording data to or reproducing data recorded in the DCD, and FIG. 3 is a schematic configuration showing the DCD deck portion of FIG. It is a block diagram.

2 and 3, the DCD digital device 100 includes an engine unit 120 and a host 140.

The engine unit 120 is a device for reading out predetermined information from the DCD 10 by rotating the detachably mounted DCD 10 or recording the predetermined information in the DCD 10. The host 140 may be connected to the engine unit 120 to control the engine unit 120, and may be connected to an external device, for example, a personal computer (PC) 200, to control the engine unit 120.

The engine unit 120 includes a DCD deck 122, a DCD servo 124, a buffer 125, an engine memory 126, an engine microcom 128, and an engine interface 129. The DCD deck unit 122 includes a DCD drive 122a, an optical pickup unit 122b, and a signal processor 122c.

The DCD deck unit 122 is controlled by the engine microcomputer 128 when the DCD 10 is inserted into the DCD drive 122a to record data in the DCD 10 or to pick up data from the DCD 10. Here, data recording to or from the DCD 10 is picked up by the optical pickup unit 122b, and the optical pickup unit 122b processes the data received from the engine microcomputer 128 by signal processing. The data recorded in the DCD 10 or picked up from the DCD 10 are signal processed and provided to the engine microcomputer 128. The signal processor 122c performs signal processing such as A / D conversion, measurement of jitter value for the reproduced signal, and compensation processing, which are well known techniques.

In addition, the optical pickup unit 122b has a function of detecting whether the DCD 10 is mounted on the DCD drive 122a. When power is supplied to the device 100 for DCD, or when a new DCD 10 is inserted into the DCD drive 122a, the optical pickup unit 122b detects whether the DCD 10 is mounted and the engine microcomputer 128. By transmitting a signal), the DCD device 100 can be initialized accordingly. Here, the initialization of the DCD device 100 is an attribute of the files recorded in the DCD 10 when power is supplied to the DCD device 100 or when a new DCD 10 is inserted into the DCD drive 122a. The operation of reading information and storing the information in the memory 143 of the host 140 is described.

The DCD servo 124 drives the DCD drive 122a under the control of the engine microcomputer 128. That is, the DCD servo 124 rotates the DCD 10 by varying the speed according to the signal received from the engine microcomputer 128.

The engine microcomputer 128 transmits and receives data with the DSP 141 of the host 140 through the engine interface unit 129. Attribute information on the files recorded in the DCD 10 received from the DCD deck unit 122 is transmitted to the DSP 141 of the host 140 through the engine interface unit 129.

The buffer 125 is for temporarily storing data to be recorded and reproduced when data is recorded and reproduced with respect to the DCD 10, and may use a static random access memory (SRAM). The engine memory 126 is for storing code values and control data of various command words promised between the DCD 10, the engine unit 120, and the engine unit 120 and the host 140. memory: flash RAM) can be used. The engine microcomputer 128 controls the DCD deck 122, the DCD servo 124, and the buffer 125. The engine interface 129 provides an interface between the engine unit 120 and the host 140.

The host 140 includes a DSP 141, a power supply unit 142, a memory 143, an external interface 144, an LCD display 145, an audio output unit 146, a voice input unit 147, and a key input unit 148. And a battery remaining detection unit 149.

The DSP 141 is connected to the engine interface 129 and accesses the engine unit 120 to control not only the recording and reading data but also the function of reproducing the read data and the entire digital device 100 for the DCD. The DSP 141 also controls the entire DCD device 100 so that reproduction / recording of the file is processed in accordance with attribute information of the data read out in units of files.

The DSP 141 includes a timer 141a and an OSD processor 141b. The timer 141a provides time information for controlling the digital device 100 for DCD. The OSD processing unit 141b provides various character information to be displayed on the LCD display 145.

The power supply unit 142 includes a main battery 142a and a backup battery 142b. The main battery 142a provides a power source for driving the digital device 100 for DCD. The backup battery 142a provides a power supply for returning data remaining in the memory 143 to the DCD 10 after the power supply of the DCD digital device 100 is turned off. The remaining battery detection unit 149 checks the remaining amount of the main battery 142a and transmits the result to the DSP 141.

In addition, the memory 143 is controlled by the DSP 141 and receives and stores attribute information about files recorded in the DCD from the DSP 141. The LCD display 145 is controlled by the DSP 141 and is preferably implemented to display attribute information stored in the memory 143. Thus, the user can easily grasp the information of the files recorded in the DCD 10 by the attribute information displayed on the LCD display 145 and select a predetermined file.

The external interface 144 of the DSP 141 used a USB interface as an interface between the DCD digital device 100 and the PC 200.

The audio output unit 146 is controlled by the DSP 141 and outputs audio data reproduced from the DCD 10. The voice input unit 147 processes the voice command input from the user and delivers the voice command to the DSP 141. Of course, the user may input a command for the DCD digital device 100 through the key input unit 148. Here, the key input unit 148 is used for inputting a user's selection command for at least one of the attribute information displayed on the LCD display 145. In this case, the key input unit 148 is preferably implemented to position the cursor on the directory displayed on the LCD display 145, and move the cursor located so that the user can select the desired directory.

The engine unit 120 also includes a register unit 127 composed of four registers as shown in FIG. The register section 127 is composed of a control register 127a, a status register 127b, a byte counter register 127c, and a data register 127d, and each register is used for communication with the host 140. The host 140 selects a register to be accessed from among the registers of the register unit 127 according to the values of the two bit bits (DPI_ADD0 and DPI_ADD1) for the DCD interface. The host 140 performs a write operation on the control register 127a, and the engine 120 performs a read operation.

The control register 127a has the function control and interface interrupt enable / disable values recorded by the host 140. The host 140 can read only the status register 127b, and the engine unit 120 can both read and write the status register 127b. The status register 127b holds status information and interrupt reason information. The host 140 and the engine unit 120 may perform both write and read operations with respect to the byte counter register 127c. However, the host 140 may write to the byte counter register 127c only when the BUSY bit of the status register 127b is clear, and the data DATA bit of the status register 127b is set. Only return valid information is read from the byte counter register 127c. The byte counter register 127c contains the byte count for the next command, data, or status mode transfer. The host 140 and the engine unit 120 can both read and write the data register 127d. However, the host 140 writes the data to the data register 127d to transmit data to the engine unit 120 during the command and data out phases. In addition, the host 140 reads the data register 127d to transmit data from the engine unit 120 during the status and data in phases.

Between the host 140 and the engine unit 120, a physical layer physically connecting the host 140 and the engine unit 120, and between the host 140 and the engine unit 120. A data-link layer defining a method used for information exchange, a command layer recording commands related to data for the DCD 10 to control data accessed by the engine unit 120, And a connection state of four layers such as an application layer including a file data / meta data mapping and a user interface. The connection state of the four layers existing between the host 140 and the engine unit 120 is such that file data / metadata recorded in the DCD driven by the engine unit 120 is smoothly transmitted to the host 140 to be processed. To help.

5 is a flowchart illustrating a file automatic playback method according to an exemplary embodiment of FIG. 3. With reference to the drawings will be described the operation of the portable device according to an embodiment of the present invention.

When power is supplied to the DCD device 100 (S501), the DSP 141 transmits a control signal to the engine microcomputer 128 to allow the engine microcomb 128 to control the initialization of the DCD device 100. Do it. Here, when power is supplied to the DCD device 100 (S501), the engine microcom 128 may independently perform control for initializing the DCD device 100 even though a control signal is not received from the DSP 141. It may be implemented to be.

The optical pickup unit 122b of the DCD deck unit 122 reads whether the DCD 10 is mounted on the DCD drive 122a under the control of the engine microcomputer 128. If the DCD 10 is not mounted on the DCD drive 122a, the optical pickup unit 122b transmits a signal to the engine microcomputer 128 that the DCD 10 is not mounted. The engine micom 128 transmits a signal received from the optical pickup unit 122a to the DSP 141. The engine microcom 128 and the DSP 141 may be configured by the DCD 10 as the DCD drive 122a. Standby mode is set until

When the DCD 10 is mounted on the DCD drive 122a, the optical pickup unit 122b transmits a signal to the engine microcomputer 128 indicating that the DCD 10 is mounted. The engine microcomputer 128 transmits a signal received from the optical pickup unit 122b to the DSP 141. When the DSP 141 receives a signal indicating that the DCD 10 is mounted on the DCD drive 122a from the engine microcomputer 128, the DSP 141 rotates the DCD 10 at the first reading speed set in association with the power supply. Is transmitted to the engine microcomputer 128. Here, it is preferable that the first reading speed is set at a minimum speed that can read the information recorded from the DCD 10.

The engine microcomputer 128 rotates the DCD 10 by controlling the DCD servo 124 according to the rotation command received from the DSP 141 (S503). In addition, the engine microcomputer 128 controls the optical pickup unit 122b to read attribute information of each file recorded in the DCD 10 from the DCD 10 rotated by the DCD servo 124. The optical pickup unit 122b is controlled by the engine microcomputer 128 to read attribute information for each file recorded from the DCD 10 and transmits the read attribute information to the signal processor 122c. The signal processor 122c processes the signal received from the optical pickup unit 122b and transmits the signal to the engine microcomputer 128. The attribute information transmitted to the engine microcomputer 128 is transmitted to the DSP 141 again, and the DSP 141 stores the attribute information received from the engine microcomputer 128 in the memory 143 (S505). Here, although the initialization operation of the engine micom 128 has been described as being implemented by the control signal of the DSP 141, the present invention is not limited thereto, and the engine micom 128 may be implemented to be independently determined and performed.

The DSP 141 determines whether a key input signal by the user has been input through the key input unit 128 before the operation of storing the attribute information received from the engine microcomputer 128 in the memory 143 is completed. It is determined (S507).

If a key input signal by the user is input before the storage operation to the memory 143 is completed, the DSP 141 causes the DCD 10 to increase the rotational speed at a second read speed set higher than the first read speed. The command to increase the rotation speed is transmitted to the engine microcomputer 128. When receiving the rotation speed increase command from the DSP 141, the engine microcomputer 128 controls the DCD servo 124 to increase and rotate the rotation speed of the DCD 10 (S509). The engine micom 128 controls the optical pickup unit 122b so that the reading speed of the attribute information by the optical pickup unit 122b also increases in response to the increase in the rotational speed of the DCD 10 by the DCD servo 124. Therefore, if a key input signal by the user is input before the operation of storing the attribute information in the memory 143 is completed, the DSP 141 quickly increases the attribute information by increasing the rotational speed of the DCD 10. ) Can be saved.

Thus, the portable device according to an embodiment of the present invention not only performs the initialization operation so that the minimum power is consumed when the portable device is powered, and also if a key signal is input by the user before the initialization operation is completed. By increasing the rotational speed of the recording medium, the waiting time for the user command can be reduced to a minimum.

6 is a flowchart illustrating a file automatic playback method according to another embodiment of FIG. 3. The operation of another embodiment of the present invention will be described with reference to the drawings.

When the DCD 10 is inserted into the DCD drive 122a (S601), the DSP 141 transmits a control signal to the engine microcomb 128 to cause the engine microcomb 128 to initialize the device 100 for the DCD. Take control. Here, when the DCD 10 is inserted into the DCD drive 122a (S601), the engine microcom 128 independently controls the initialization of the DCD device 100 even if a control signal is not received from the DSP 141. It can also be implemented to perform.

Here, whether or not the DCD 10 is inserted into the DCD drive 122a may be implemented to be read by the optical pickup unit 122b of the DCD deck unit 122, and another sensor such as a DCD mounting unit (not shown). May be implemented by a sensor for detecting the compression of the device. Here, the optical pickup unit 122b picks up the insertion signal from the DCD 10.

When the DCD 10 is inserted into the DCD drive 122a, the optical pickup unit 122b picks up the insertion signal from the DCD 10 and transmits the insertion signal to the engine microcomputer 128. The engine microcomputer 128 transmits a signal received from the optical pickup unit 122b to the DSP 141. When the DSP 141 receives a signal indicating that the DCD 10 is inserted into the DCD drive 122a from the engine microcomputer 128, the DCD 10 operates at a first read speed set in association with the insertion of the DCD 10. Send a command to rotate the engine microcomputer (128). Here, it is preferable that the first reading speed is set at a minimum speed that can read the information recorded from the DCD 10. Since the operation according to another embodiment of the present invention is the same as in the case of FIG. 5, the description thereof will be omitted.                     

Accordingly, the portable device according to another embodiment of the present invention not only performs the initialization operation so that the minimum power is consumed when the recording medium is inserted into the portable device, and a key signal is input by the user before the initialization operation is completed. In this case, the waiting time for the user command can be reduced to a minimum by increasing the rotational speed of the recording medium.

The portable device with an initialization function according to the present invention not only performs the initialization operation so that the minimum power is consumed when the portable device is supplied with power or when a new recording medium is inserted, but before the initialization operation is completed. When the command is inputted, the waiting time of the user command can be minimized by increasing the initialization speed.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the present invention is not limited to the specific embodiments of the present invention without departing from the spirit of the present invention as claimed in the claims. Anyone skilled in the art can make various modifications, as well as such modifications are within the scope of the claims.

Claims (8)

A portable device that reads and reproduces information recorded on a removable recording medium, Memory; A key input unit provided with a key for setting an operation of the device; An engine unit capable of reading and outputting the information recorded on the recording medium while rotating the mounted recording medium; And When the power is turned on, the engine unit is controlled to copy the attribute information recorded on the recording medium to the memory at a first reading speed set in association with the power-on, but before the copy of the attribute information is completed, the key is input from the key input unit. And a controller configured to control the engine unit to read and copy the attribute information to the memory at a second read speed set higher than the first read speed when a signal is received. The method of claim 1, And the attribute information includes name information of each file with respect to the files recorded on the recording medium and location information on which the file is recorded. Rotating the recording medium at a first reading speed set to read attribute information recorded on the recording medium in association with the power supply when power is supplied to the portable device; Storing attribute information read from the recording medium in a memory; And If a key signal for setting a function of the portable device is input by a user before the operation of storing the attribute information in the memory is completed, the rotation speed of the recording medium for reading the attribute information is higher than the first reading speed. And increasing the second reading speed which is set to a high setting speed of the portable device. The method of claim 3, wherein And the attribute information includes name information of each file with respect to the files recorded on the recording medium, and location information on which the file is recorded. A portable device that reads and reproduces information recorded on a removable recording medium, Memory; A key input unit provided with a key for setting an operation of the device; An engine unit capable of reading and outputting the information recorded on the recording medium while rotating the mounted recording medium; And When the recording medium is inserted into the engine unit, the engine unit is controlled to copy the attribute information recorded on the recording medium to the memory at a first reading speed set in association with the insertion, and the copying of the attribute information is completed. And a control unit which controls the engine unit to read the attribute information at a second read speed set higher than the first read speed and copy the attribute information to the memory when a key signal is received from the key input unit before. Portable device having a. The method of claim 5, And the attribute information includes name information of each file with respect to the files recorded on the recording medium and location information on which the file is recorded. Rotating the recording medium at a first reading speed set to read attribute information recorded on the recording medium in association with the insertion when a removable recording medium is inserted into the portable device; Storing attribute information read from the recording medium in a memory; And If a key signal for setting a function of the portable device is input by a user before the operation of storing the attribute information in the memory is completed, the rotation speed of the recording medium for reading the attribute information is higher than the first reading speed. And increasing the second reading speed which is set to a high setting speed of the portable device. The method of claim 7, wherein And the attribute information includes name information of each file with respect to the files recorded on the recording medium, and location information on which the file is recorded.

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