CN1102288C

CN1102288C - Game VCD playback machine

Info

Publication number: CN1102288C
Application number: CN98119994A
Authority: CN
Inventors: 陈耀汉
Original assignee: Wenye Sci & Tech Pte Ltd
Current assignee: Wenye Sci & Tech Pte Ltd
Priority date: 1998-09-29
Filing date: 1998-09-29
Publication date: 2003-02-26
Anticipated expiration: 2018-09-29
Also published as: CN1249513A

Abstract

The present invention relates to a game VCD playback machine which comprises all functional modules of a VCD machine. The present invention comprises a power supply part, a CD machine core is connected with a decoding module through a CD data line and a control line, the decoding module is connected with a panel module and an audio/video output, and the panel module is composed of a display/keyboard scanning. A decoding module of a VCD machine is provided with an appended game port interface connected with a game module, a main controller is used for controlling the state of the game module, the game module is connected with the audio/video output, and the output of the game module is connected with the panel module. The present invention has the functions of VCD playback machines and video game machines. The present invention can play VCD discs and game discs. The present invention is an enhanced type VCD playback machine with the function of game realizing and has the advantage of simple operation.

Description

Game VCD playback machine

Technical field

The present invention relates to a kind of player that has game replaying dish and VCD dish concurrently.

Technical background

Along with advances in electronic technology, the very not long so far history though VCD player is born had obtained development rapidly in recent years.VCD player is that the VCD/CD-DA disc is broadcasted platform.CD follows a subclass of CD-ROM XA form, and is very reliable aspect the storage of digital audio/video content.Because the Highgrade integration of the servo and mpeg decode VLSI (very large scale integrated circuit) of CD makes that present VCD player price is very cheap, so VCD, DVD, the various video compact disk players of CVD spread in people's the life day by day.Therefore and in the field of game machine, most popular in the world is one of 16 consumer game machine systems, and game shows are more, is subjected to the game developer and the consumer accepts extensively.Wherein Sega MDII type game machine be from having 128K reading of data to the recreation casket of 4MROM data, the three-dimensional artificial playback is provided on traditional televisor, therefore for further enriching free life, many families have also purchased the game optical disk player.The one but existing these two kinds of players are respectively done for oneself, playing function mutually can not be general, causes the certain wasting of resources and the inconvenience of use, and taken limited space.

Summary of the invention

The object of the invention is to provide a kind of game VCD playback machine at the deficiency of prior art, it has the function of VCD player and game machine concurrently, both can play VCD dish, but game replaying dish again, be the enhancement mode VCD player of supporting game function, use simple to operate.

The object of the present invention is achieved like this: a kind of game VCD playback machine, the repertoire module that comprises the VCD machine, power unit, the CD player core connects decoder module by CD data line and control line, decoder module connects panel module and the audio/video output that demonstration/keyboard scan is formed, wherein said VCD machine decoder module is provided with additional game port interface, this port interface is connected with game module, the main controller controls game module state of decoder module, game module connects audio/video output again, game module output joint face plate module.

The interface of the central controller of described game module is connected to dynamic storage controller.

Described dynamic storage controller is connected to and is no more than 32,000,000 dynamic storage, and dynamic storage controller and the recreation central controller join.

Described decoder module is provided with the CD-ROM Mode2 Form1 form sector decoding of reading on the CD, and data cached in being less than the free buffer memory that can read of 4 megabit DRAM.

Panel module comprises demonstration, keyboard scan and remote control part.

According to the technique scheme analysis as can be known, the present invention adopts the CD Storage Media of high power capacity and VCD to be with built-in CD-ROM decoder integrated circuit, the game hardware format module of VCD player and process particular design is combined, and is that the enhancement mode player of the high-performance of providing/price than game capabilities is provided.

The present invention is described in further detail below in conjunction with accompanying drawing and specific embodiments.

Description of drawings

Fig. 1 is a circuit structure schematic diagram of the present invention;

Fig. 2 has the decoding circuit schematic diagram at game port interface for the present invention;

Fig. 3 is the circuit theory diagrams of game module of the present invention;

The sequential chart that Fig. 4 reads for game data of the present invention;

Fig. 5 is a master controller program curing process flow diagram of the present invention.

Embodiment

Referring to Fig. 1, the present invention is a kind of game VCD playback machine, comprises the repertoire module of VCD machine, and the VCD player movement of the movement of use and standard is identical, for example Phillippe's 6001/7001/7003, and all can of Sony, Sanyo.Therefore it at first comprises power unit, and the CD player core module by CD servo/DSP circuit board and CD tray form.The CD circuit board partly provides basic servosignal for the CD player tool, and serial data stream is delivered to the mpeg decode module.

The CD player core module connects decoder module by CD data line and control line, and this module is finished basic MPEG-1 audio/video bitstreams decoding, and CD-DA/VCD1.1/VCD2.0 disc playback function is provided.Its master controller provides system's control, plays the effect of other modules of control.This decoder module also provides CD-ROM Mode ECC decoding so that read VCD2.0 data on first rail except that decoding.Decoder module is provided with the additional game port interface that is connected with game module in the present invention, the in house software control game module state of the master controller of decoder module, and this decoder module can read the CD-ROM Mode2 Form1 form sector decoding on the CD, and data cached in being less than the free buffer memory that can read of 4 megabit DRAM.Game module connects audio/video output again, game module output joint face plate module.Panel module comprises demonstration, keyboard scan and remote control part.

Referring to the embodiment circuit structure schematic diagram of Fig. 2 for a kind of mpeg decode module of the present invention.Among the figure, add special game port interface on the basic mpeg decode module, this interface comprises one 8 bit data bus and 5 control signals, be used for the game data in the free space of MPEG DRAM is read in the impact damper in the game module, port is provided as the necessary control signal of game function.These interconnective signal is respectively:

8 game data buses of HD (7..0): game data is downloaded to cribbage-board from mpeg board.

-DS data strobe: this signal is gone up the recreation data byte with HD (7..0) and is latched in the impact damper of game module, by the controller control of game module.

H/L-or-Start (high/low position latch): difunctional I/O.During data were downloaded, the data on the H/L-signal indication HD (7..0) were MSB (when H/L-is high level) or LSB (when H/L-is low level).

When playing ,-Start signal provides the control function that resets of playing, and is equivalent to press the Start Button on SEGA MEGA DRIVE cribbage-board.

-WE writes control: during game data was downloaded ,-WE provided write signal to the game module controller, and the game data in its register that will be latched in controller inside is write in the DRAM impact damper of game module.

The choosing of SEL sheet: when master controller is read the recreation impact damper with data, SEL=" 0 ".Afterwards, master controller makes SEL=" 1 ", thereby allows integrated circuit control game module 16 bit data bus of SEGA MEGA.

AVSW AN channel selecting: this signal is used to make master controller to select the signal source of the audio/video output of player from mpeg decode module or game module.

Referring to Fig. 3, be an embodiment circuit structure schematic diagram of game module of the present invention, wherein the interface of the central controller of game module is connected to dynamic storage controller, and dynamic storage controller is connected to and is no more than 32,000,000 dynamic storage DRAM.

The module of present embodiment provides basic SEGA16 position game video-recording and playback function.Employed main devices is 16 game machine controllers of SEGA315-5960 and SSHK315-003 game module controller.Former game cassette interface/CEO, the MCLK of 16 game machine controllers of SEGA315-5960 ,/WRES connect dynamic storage controller SSHK315-003 /AS, CLK mouth.Dynamic storage controller SSHK315-003 /WE ,/CAS ,/RASI ,/MA (11,0) ,/RASO ,/the OE port meets dynamic storage DRAM.Game data is sent to the recreation impact damper by the game port interface from MPEG DRAM impact damper, is read and is carried out ECC decoding by the MPEG chip.After game data downloaded to the DRAM buffering, master controller must make SEL be made as " 1 ", thereby allowed SEGA control recreation impact damper.For game data being read in the DRAM buffering, master controller need be latched into numeric string in the register in the game module controller.Successively low byte and upper byte are latched by 8 game port interfaces.It is effective to latch back "/WE " signal, makes game module controller 16 bit data write recreation DRAM bus (GD (15..0)).In data transmission, the controller of game module can be handled the DRAM address automatically, and refreshes.Wherein Fig. 4 is read the sequential of a game data word string by the DRAM impact damper.

When AV changes, can utilize one or more AV traffic pilots, also the selector switch manual switchover can be set externally certainly.

Referring to Fig. 5, can further specify the program curing in the master controller.Program curing in the existing relatively general master controller needs to change 3 places:

1, the additional 8 bit data ports and the I/O control signal (, then can use) at game port interface if 8 available bit data ports are arranged from the master controller to the mpeg decoder.

2, the CD data that increase game module are read and transfer software module.

3, optional VFD and OSD program curing are changed.

In addition, for the present invention, gameboard can adopt specific Trajectory Design form, so that game data is controlled and decoded, finishes the identification dress and coils with play; Read and release the CD block of information of translating gameboard; Show game contents or menu; Provide reading fast of starting position of recreation a little and not need to carry out file search: to provide the PBC of certain level, as interactive.Its track configuration is in proper order:

1, Lead-In Area: identification disc;

2, first rail is recreation CD information storage area: as the gameboard information storage area, comprise all essential informations of CD such as PVD, AINFO.GCD and ENTRIES.GCD;

3, second rail is the still image memory block: the record still image is used for showing Game Menu, option;

4, the 3rd rail is the game data memory block: store whole game shows, can store 99 at most.

5, leading-out zone.

First kind of structure that reading out structure comprises is the file system that meets CD Bridge standard, and second kind of structure is the data of recreation CD block of information, and data are on the fixed position of the absolute time " 00:04:00 " of disc, so that easy reading of data.

Bibliographic structure is positioned under the GCD catalogue.All still image is positioned under " MENU " catalogue, and menu directory comprises the still image file, follows the VCD2.0 specification.Entire data files is positioned under " PROGRAM " catalogue, and each file comprises a recreation, and maximum number of files is 99.

Claims

1. game VCD playback machine, the repertoire module that comprises the VCD machine, power unit, the CD player core connects decoder module by CD data line and control line, decoder module connects panel module and the audio/video output that demonstration/keyboard scan is formed, it is characterized in that: described VCD machine decoder module is provided with additional game port interface, this port interface links to each other with game module, main controller controls game module state by decoder module, game module connects audio/video output again, game module output joint face plate module.

2. game VCD playback machine according to claim 1 is characterized in that: the interface of the central controller of described game module is connected to dynamic storage controller.

3. game VCD playback machine according to claim 2 is characterized in that: described dynamic storage controller is connected to and is no more than 32,000,000 dynamic storage,, and dynamic storage controller and the recreation central controller join.

4. game VCD playback machine according to claim 1 is characterized in that: described decoder module is provided with the CD-ROM Mode2 Form1 form sector decoding of reading on the CD, and data cached in being less than the free buffer memory that can read of 4 megabit DRAM.

5. game VCD playback machine according to claim 1 is characterized in that: described panel module comprises demonstration, keyboard scan and remote control part.