WO2002041310A2

WO2002041310A2 - Cd-rom wing and reading and transporting device

Info

Publication number: WO2002041310A2
Application number: PCT/FR2001/003578
Authority: WO
Inventors: Philippe Simon
Original assignee: Philippe Simon
Priority date: 2000-11-16
Filing date: 2001-11-15
Publication date: 2002-05-23
Also published as: AU2002223072A1; EP1334487A2; FR2816748A1; WO2002041310A3; FR2816748B1

Abstract

The invention concerns a medium object for writing non-volatile data (AA), CD-ROM, DVD, CDR or the like (01), used in an electronic unit of the micro-computer type. Said object is characterised by two wings (02) located on either side of a centre containing a mini-CD-ROM with a diameter less than eighty millimetres, said wings (02) acting on the levitation of the object during its rotation. Wing means any bearing surface having a diameter less that the diameter of the CD-ROM acting on the levitation of the object. The invention is characterised in that said objects enables playing the CD-ROM and its centring in the CD-ROM player slide-in units while stabilising the levitation of the object during its rotation. The invention also concerns a flat rectangular case (BB) for transporting said medium object (AA), in which is provided a housing (13) wherein the removable wing (AA) is urged to be fixed in several points (15). The invention further concerns a device whereby a master and slave protocol is established for communicating through the interface of an optical beam between two physical media, in particular by automatic control of the optical reader, integrating in the rotating object (AA) an electronic micromodule and by making the transport case (BB) interactive.

Description

CD-ROM wing and reading and transport device

DESCRIPTION

The invention relates to an object for writing non-volatile data (AA), CD-ROM, DVD, CDR or similar (01), used in an electronic unit of microcomputer type. This object is characterized by two wings (02) located on either side of a center containing a mini 5 ^* CD-ROM with a diameter less than eighty millimeters, these wings (02) acting on the support of the object during its rotation. By wing will be understood any bearing surface having a width less than the diameter of the CD having an action on the lift of the object.

The invention is characterized in that this object allows the reading of the CD-ROM as well as its centering in the drawers of CD-ROM readers by ensuring the function of stabilizing the lift of the object during its rotation.

The invention relates to a flat and rectangular case (BB) allowing the transport of the above-mentioned support object (AA). In this housing dζ "is provided a housing (13) in which is fixed at several points (15) the removable wing (AA).

The invention relates to a device according to which a master and slave protocol is established for communicating by the interface of an optical beam between two physical media. In particular by enslaving the

£ .0 optical reader, embedding in the rotating object (AA) an electronic micromodule and making the transport case (BB) interactive.

Objects of this kind are known from various patent applications relating to cards comprising on the one hand an object body and on the other hand a data storage unit, such as 5 ^* CD-ROM cards, cards with chips and mixed cards including a CD-ROM associated with an electronic chip.

This type of support is known from the Dutch patent application NL 8503410. The card is used in connection with totally specific reading tools, having two optical beams,

30 immobilizing the card between two plates or by aspiration. The use of an optical memory disposed on a card support is known from patent application US 5475656, the optical support being free on its axis of rotation in a card body. WO 8605620 also speaks of a circular optical support and a

35 chip in a card body by playing on the offset of the CD-ROM support. And the patent FR 2782187 also speak of a circular optical support in a card body by claiming a mode of wedging in the 80mm space.

The invention relates to a device for improving the quality of

4o reading of mini-CD by optimizing the lift and minimizing the drag following the rotation of the object (AA) during the reading of the disc. All these patents relate to cards made up of a CD-ROM associated or not with a Chip, however they do not evoke the work of the forces of friction generated by the rotation of a rectangular card in a reader and the vibrations resulting therefrom. A CD-ROM card is an object which rotates on a central axis in a determined direction, to improve the penetration of the profile of the wing in the air during its rotation, the aerodynamics of the rotating object can be adjusted, set up balancing systems, to compensate for the inertia of the shape.

We also note that all these CD-ROM cards do not have mechanical protection in order to protect the optical support (01) outside of the use phases and the disc (01) risks very quickly being damaged. The transport case (BB) of the present invention provides protection to the mini-CD because its reading face is protected in the housing (13) of the case (BB).

AS According to a first aspect of the invention, it is characterized in that:

In order to improve the penetration of the object's profile (AA) into the air during its rotation, it is recommended to arrange the shape of the object in rotation.

2.Q The aerodynamics of the object (AA) is based on the principle of the inverted wing, i.e. Pintrados (Oδ) on the side of the upper face, and extrados (07) on the side of the face lower. This feature has the effect of pressing the CDL (AA) down during its rotation in the reader, which makes it possible to compensate for the lack of mass of the object compared to the

2.Ç standard of the red book concerning the mass of a CD-ROM. The risk of seeing the object fly away in the readers at the time of its extraction is eliminated, whereas this problem is frequent for CD-ROM cards whose average mass is approximately 8g less than 14 to 33 g of the CD standard- DA (Compact Disc-Digital Audio) recorded in the red book or book

3o red. The direction of rotation is always a clockwise direction of rotation (11), which makes it possible to arrange the profile of the wings (02) with a leading edge (10) and a trailing edge (09). (02) rotating around an axis, they have the profiles of the inverted edges relative to each other

In order to improve the rotation of the wing during reading, we recommend

55 ^" a balancing system to compensate for the inertia of the shape. This system consists of four balancing weights (25) arranged in the body of the wing at specific locations and whose mass is calculated according to the shape of the wing.

The following information highlights the importance of the Ao operating procedures implemented, for reading an optical medium (01) and reading an electronic micro-circuit (31): This is the software part.

CD-ROM cards are an evolution of the compact disc using a digital burning process of binary coded signal, the

In traditional £ furrow of analog signals being replaced by a multitude of micro-cuvettes called pits (roughness) intended to be read by the laser beam of the read head of an external reader. The disc assembly laser in operation is characterized by a bandwidth determined in part by the size of the laser spot and the linear speed. After establishing the optical path, tracking and rotation speed controls optimize the settings. The starting of the servocontrol circuits S is controlled by the "management" function of the central unit. The processing of the information necessary for the various control circuits is grouped in the “control” sub-function. The operating procedures can be contained in an EPROM memory internal to the “servo-control” sub-function or in slθ the EPROM of the “management” function (program memory).

Controlling consists in comparing the effect produced by an actuator with a setpoint or reference value, this value having an origin external to the circuit. It also ensures: siS - the rotation of the disc so as to make the track pass in front of the laser beam. The disc motor is controlled by an interface and servo circuit making it possible to obtain an almost constant reading speed. It is the "management" which decides on the start of the engine rotation; when reading starts, the motor-disc servo circuit has no other information. The rotation of the disc motor can be carried out before or after the establishment of the optical path.

- the positioning of the focal point of the laser beam in relation to the engraved track or signal point: this is the tracking servo of the “tracking” track or radial servo. Whatever the usage function of the optical reader, the main functions of the reader meet the requirements linked to the laser reading of the disc: loading of the disc, establishment of the optical path, rotation and digital bit rate, tracking of the track, which are the prerequisites for reading. To do this

3rd> add the automatic start-up of reading and the elements necessary for recognition of the recording standard.

Chip cards are standardized objects described in particular by ISO 7816, which main function is to allow electronic transactions by identification of the holder. To this end, the

35 "smart cards include circuits, integrated on a silicon substrate, defining different functional elements and in particular a central processing unit (CPU) as well as volatile memories (RAM), non-volatile programmable and electrically erasable (EEPROM). central processing unit (CPU) provides management and addresses between the different

Ao memories via bus. The data and addresses are generally coded on 8 and 16 bits respectively.

The third aspect of the invention relates to a device according to which a master and slave protocol is established to communicate by the interface of an optical beam between the microcomputer and the integrated system (31) AS contained in the wing (AA ). Data writing operations are performed under normal conditions based on an input signal managed by two separately accessible memory banks (30) allowing identification and recording of data. This signal input being subject to its source by a protocol induced by the optical support (01) of the wing (AA).

The present invention relates to a wing (AA) that can be read in: standard type drawer CD-ROM readers, clip-on readers of £ CD-ROM, and with an adapter for slot type readers. This object (AA) can also be read by a domestic scanner using a timing adapter placed on the glass and provided with electrical autonomy. The reading modes can be defined as follows: Either by inserting the card into a CD-ROM reader. to - Either remotely by electromagnetic coupling (in principle of the inductive type) between a transmission-reception terminal and a card placed in the action area of the terminal.

Or by scanner decoding terminals, previously slaved by a card operating protocol giving protection

<> <S mechanical, as well as electrical autonomy (support comprising an electrical connection) to the CD-ROM and databases, and provided with an interface system.

The software organizes the sequence of work phases to be accomplished. It stores data in ROM memory permanently. Among others

2 © operations, the software allows the reading or writing of intermediate data in RAM or NVRAM memory. When the CD player is switched on, following a specific procedure, it is possible to configure the player via the service mode: The main program is then diverted into a program reserved for maintenance. The mode

% S service gives access to the specific characteristics of the chassis (version, identification of microcontroller circuits, EEPROM, etc.); In operation, the service mode provides access to certain settings. The optical drive is started according to a recognition and enslavement procedure, reading the menu is necessary

3θ recognition of the CD. The optical drive must perform this step before the "management" function can give the user back control (Figure 11). i

The present invention applies to all types of CD-ROM readers capable of reading a CD-ROM card. It offers a protocol

3b for controlling the reader enabling data to be exchanged between the central unit (microcomputer) and the electronic micro-circuit (31) contained in the CD-ROM card. The data exchanges are carried out by optoelectric means (24), the card having on its underside reference target points (23), placed at a determined angular distance.

Ao allowing to specify the angular speed as well as the orbit of reading of the optoelectric interface (24). This interface consists of diodes and transistors whose functions are to allow the induction of the micro-circuit as well as the inputs and outputs of information contained in the central unit and the integrated circuit (31) of the card.

AS A variant of this protocol offers the servoing of scanner type readers using a centering template, with the aim of establishing a dialog zone between the integrated circuit of the card and a central unit connected to the scanner. The card is then static when it is read. After starting up the reader, once recognition and control have been carried out, the software contained on the CD-ROM can then be loaded onto the computer's RAM memory. This software must respond to several functions: S - Allow the establishment of a dialogue space between the user and the hard drive.

Allow the establishment of a dialogue space between the user and a web connection.

Allow reading of the data contained on the CD-ROM (other than 0 that of the installation software).

Allow a protocol of dialogue between the computer and the micro-system (31) of the CDL. Some of this data can be engraved on the optical medium in the case where it is CDR type.

The invention relates to the support of the mini-CD named by ζ the initials CDL (AA)). It consists of a body containing an optical memory on a mini-disk (01), and which may, partially or not depending on the configuration of the product, contain in its wings (02) an electronic micro-circuit (31) comprising three interfaces in parallel: A mechanical (22), a maghetic (28), an optoelectric (24); Plus a balancing system (25) and an electrical energy management system (26).

The invention relates to the portable housing (BB) on which the mixed wing (AA) is fixed in a removable and static manner, the connections being made by contact (7,22). This support consists of a rectangular dimension S ^" shape presenting on one side an image (20), and in the third aspect of the invention, a reading screen (18) and the control keys (19) and on the other side a connection pad (17) in a socket (13) on which the mixed card (AA) is temporarily fixed. The body of the object (BB) contains a screen (18), a battery (33) and rechargeable by an external connection (21), a keyboard (19), a conductive network (27), (32), a contact pad (17) for mechanical connection with the card. ^£ -

The invention relates to the supports (AA.BB) forming after fixing a full-fledged object The wing (AA) which can be clipped onto a 5 ^" reading box (BB) using contact connections 7), ( 22), this support being provided with a reading screen (18), tactile connections (19) making it possible to directly interrogate the chip and to check the updates of the micro-system (31). BB) autonomous wing clipper (AA) providing electrical autonomy (33) to the mixed wing system (AA).

Such objects are intended to perform various operations, such as, for example, communication operations, trade in event operations, teleticketing, connection operations for the Internet, identification operations, as well as all applications which can be carried out either by inserting the card in a reader or remotely by electromagnetic coupling (in principle of the inductive type) between a transmit-receive terminal and a card placed in the action area of the terminal. We consider the name “CD-ROM” above and below in its broadest sense, generically designating all S-type products of disc type consisting of an optical support CD-ROM, DVD, CDR and others.

The aims, characteristics and advantages defined above, and others still, will emerge more clearly from the description which follows and from the appended drawings, in which: FIGS. 1 and 2 represent two proposals for the wing (AA) corresponding to the invention, they are there by way of nonlimiting example.

- Figures 1a and 2a show in plan view the wing (AA) on its underside in which comes to house the mini-CD (01), there are 5 ~ ' ^es G' thirty components of the product: the wings (02), the setting stop for the 80mm space (03), the clip lights (04) and the wing tip (05) favoring the lift and facilitating the handling of the wing.

- Figures 1b and 2b show in plan view the wing (AA) on its upper 2.0 face, there are the central part with a circular hole (06) allowing the support of the CD-ROM (01) in the readers, two wings (02) and for Figure 1b the clip lights (04).

- Figure 3 shows in longitudinal section along the central axis of the wing (AA), the various components of the product, set out for the

2.S figure 1, ie the CD-ROM (01) the wings (02) the fixing lights (04) and the tip of the wing (05).

- Figures 4a and 4b show in profile view along the angle of the axis of the wings (02) the object of Figure 1 (AA), the direction of rotation of the wing is represented by the arrow (11 ) there are the specificities of the wings (02):

3o the lower surface (08) the trailing edge (09) the upper surface (07) and the leading edge (1Q).

- Figure 5 shows in plan view the housing (BB) on its underside in which comes to accommodate the wing (AA) for its transport. On this face we find the buttresses of the socket (12), the housing of the wing (13), a groove (14) to match the concentric bead located on the S CD-ROM, the fixing points (15) and two extra thicknesses (16) to match the shape of the tips of the wings.

- Figure 6 shows in plan view the housing (BB) on its upper face, it consists of a smooth plane on which can take place a visual (20).

4o - Figure 7 shows in longitudinal section along the central axis of the housing (BB) the profile thereof, there are the fixing points (15) the groove (14) and the extra thicknesses (16) located at ends of the profile.

- Figures 8a and 8b show the housing (BB) in plan according to S claim 11. Figure 8a corresponds to the upper side there is the visual (20) of the housing, a reading screen (18) and a keyboard ( 19). The figure 8b shows the underside of the housing according to FIG. 5 with in addition a contact pad (17) and an external connection (21)

- Figure 9 shows in plan lower face the wing (AA) according to claim 9 the wing (AA) on its lower face in which comes this lodge "the min-CD-ROM (01), one distinguishes the various constituent elements there to the product: The wings (02), the timing stop for the 80mm space (03), the clip lights (04), the end of the wing (05) favoring the lift and facilitating the handling of the wing, a contact pad (22), target points (23) and a line of optoelectronic sensors (24) - Figure 10 shows the housing (BB) on its underside, with the wing (AA) coming s '' fit and fix at the different fixing points (15).

- Figure 11 shows the starting diagram of the optical drive. It is carried out according to a recognition and enslavement procedure, the first track placed in the center of the disc contains the table of contents or summary, the reading of the menu being necessary for the recognition of the CD. The optical drive must carry out this step before the "management" function can give back control to the user. This algorithm shows the possibility of entering service mode. © - Figure 12 shows the elements contained in the wing (AA) in mixed wing configuration, that is to say according to claim 9. There are: The balancing masses (25) the mechanical contact area (22) an accumulator (26) the target points (23) the antenna (28) for the magnetic connection, an electrical network (27), ( 32) the optoelectric sensors (24) S the integrated system (31) its memory banks (30) its chip (29).

- Figure 13 shows the elements contained in the housing (BB) according to claim 11. The housing contains: a keyboard (19) a screen (18) a contact pad (17) an electrical network (34) two batteries (33 ) and a socket (21) for a power supply connection.

Claims

1. - Writing support object (AA) for non-volatile data, usable in an electronic unit of microcomputer type, characterized by two wings (02) located on either side of a center containing a mini-CD-ROM ( 01) or similar (CDrom, DVD, CDR) of diameter less than 80mm, the wings (02) acting on the support of the object (AA) during its rotation, said wings (02) being defined as any bearing surface of width less than the diameter of the CD-ROM (01) and inducing an action on the lift of the object (AA).

2. - Object writing support (AA) according to claim 1 characterized in that it ensures the centering of a mini-CD-ROM (01) of diameter less than 80mm in the drawers of the CD-ROM readers, and the stabilization of the levitation of the object (AA) during its rotation.

3. - writing support object (AA) according to claim 1 or 2, characterized in that it comprises a mini-CD-ROM (01) mounted in the center of two wings (02) rotating on an axis.

4. - Writing support object (AA) according to one of claims 1 to 3 characterized in that the mini-CD-ROM is injected at a thickness less than the standard "red book" in order to reduce the thickness of the object (AA) and decrease the cycle time required for the injection of the CD-ROM.

5. - writing support object (AA) according to one of claims 1 to 3 characterized in that the central part of the object is provided with a hole (06) for the support of the CD-ROM (01) by the upper support of the optical drives.

6. - writing support object (A A) according to claim 1, characterized in that the wings (02) have a width less than the diameter of the CD-ROM (01).

7. - Object writing support (AA) according to one of claims 1 to 3 or 6, characterized in that it works on the principle of the wing turned over, that is to say s the lower surface (08) on the side of the upper face, and the upper surface (07) on the side of the lower face, in order to press said object (AA) down during its rotation in the readers, to compensate for its lack of mass .

8. - writing support object (AA) according to one of claims 1 to 3, characterized in that it comprises a positioning means (03) adapted to o the 80mm space of the readers drawers.

9. - writing support object (AA) according to one of claims 1 to 3, characterized in that it comprises balancing weights (25) to compensate for its imbalance and the vibrations which result during its rotation.

5 10. - writing support object (AA) according to one of claims 1 to 3, characterized in that it comprises: an electronic micro-circuit (31); one to three interfaces in parallel, a mechanical (22), a magnetic (28), and an opto-electric (24); a balancing system (25); and an electrical energy management system (26, 27, 32).

0 11. - writing support object (AA) according to claim 1, characterized in that a flat and rectangular box (BB) ensures the transport of said object (AA), said box being provided with a housing (13 ) to which is fixed said object (AA) at one or more points (15) removably, with on the other side a visual (20).

5 12. - writing support object (AA) according to one of claims 1, 10 or 11, characterized in that the housing (BB) has contact pads (17) to which the buses (22) are connected of contact of said object (AA), said ^'housing (BB) interactive with a playback screen (18) and control keys (19) for access to the data available located in the microcircuit (31), the housing body (BB) containing a screen (18), a battery (33) rechargeable by an external connection (21), a keyboard (19), a conductive network (27, 32), and a contact pad 17 for a mechanical connection with said object (AA ).

13. - Writing support object according to one of claims 1 and 10 to 12, applicable to all types of CD-ROM readers capable of reading a CD-ROM card, characterized in that it includes a control protocol for the reader allowing the exchange of data between the central unit or microcomputer and the electronic microcircuit (31) contained in said object, the data exchanges being carried out by opto-electric means (24), the object (AA) having on its face lower of the reference target points (23) placed at a determined angular distance making it possible to specify the angular speed as well as the orbit of reading of the opto-electric interface (24), said interface comprising diodes and transistors allowing induction of the microcircuit (31) and the input and output of information contained in the central unit (29, 30) and the integrated circuit of said object (AA).

14. - writing support object (AA) according to claim 13, characterized in that it comprises a servo of scanner type readers using a centering template, to establish a dialog area between the integrated circuit of said object ( AA) and a central unit connected to the scanner, the object (AA) then being static at the time of reading.

15. - Writing support object (AA) according to one of claims 1 to 4, characterized in that the CD-ROM is glued with a crystal-type glue used to glue the polycarbonate sheets in the production of DVDs.

16. - Writing support object (AA) according to one of claims 1 to 4, characterized by the non-application of a varnish after metallization of the CD-ROM, the varnish being replaced by the glue used for fixing the CD-ROM.