Patent Description:
Electromagnetic interference (EMI) is caused by electromagnetic disturbances interacting with electromagnetic signals. Difficulties caused by the EMI have increased due to the increase in the use of the electromagnetic wave technology.

Accordingly, electronic products have been required to have an electromagnetic shielding structure.

A cable may include a conductor, such as a copper wire, for high voltage power transmission. The cable may have an electromagnetic shielding structure surrounding the conductor to shield electromagnetic waves generated from the conductor.

A cable including the electromagnetic shielding structure may have a black colour or a prominent primary colour. When the cable having the black colour or the primary colour is connected to an electronic device, the cable may be exposed to the outside of the electronic device and may impair the appearance because the cable is easily identified with the naked eye.

In addition, a cable without an electromagnetic shielding structure is called an invisible cable because it is difficult to be identified with the naked eye. Recently, invisible cables have become popular to prevent the design degradation of the electronic device caused by the coloured cable.

However, such an invisible cable has difficulty shielding electromagnetic radiation emitted from a connector connected to the invisible cable.

<CIT> relates to a fibre optic cable sub-assembly including a strain relief device for attaching an end portion of a fibre optic cable to a circuit board.

<CIT> discloses a data communications cable assembly having electromagnetic shielding features and including connectors, a metallic shell defining an enclosure and including first and second openings, and electrically-conductive filler material configured to reduce electromagnetic leakage via the first and second openings.

Provided is a cable device having improved electromagnetic interference (EMI) shielding performance.

Also provided is a cable device capable of reducing electromagnetic compatibility (EMC) noise without including a separate shielding structure.

Also provided is a cable device capable of improving EMI/electrostatic discharge (ESD) shielding performance in an optical cable including a conductive wire.

Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

In accordance with aspects of the present invention, there is provided a cable device according to claim <NUM> and a cable device according to claim <NUM>.

The connecting member may be formed of an insulating material.

The conductive case may be connected to the ground electrode.

The adjustment device may include a handle configured to move the plurality of cylindrical bodies in a sliding manner to increase or decrease an overlap of the plurality of cylindrical bodies.

The adjustment device further may include a guide portion having a plurality of grooves configured to lock the handle at different positions.

The cable device may further include a rotating bar configured to vary the number of rotations in which the metal band is wound around the cable.

The above and other aspects, features, and advantages of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:.

Embodiments described in the disclosure and configurations illustrated in the drawings are merely examples, and may be modified in various different ways without departing from the scope of the invention as defined by the claims.

In addition, the same reference numerals or signs illustrated in the drawings of the disclosure indicate elements or components performing substantially the same function. The relative size and depiction of these elements are not necessarily to scale and may be exaggerated for clarity, illustration, and convenience.

Also, the terms used herein are used to describe the example embodiments and are not intended to limit and / or restrict the disclosure. The singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In this disclosure, the terms "including", "having", and the like are used to specify features, numbers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more of the features, elements, steps, operations, elements, components, or combinations thereof.

It will be understood that, although the terms first, second, third, etc., may be used herein to describe various elements, but elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the disclosure, a first element may be termed as a second element, and a second element may be termed as a first element. The term of "and / or" includes a plurality of combinations of relevant items or any one item among a plurality of relevant items.

The invention will be described more fully hereinafter with reference to the accompanying drawings.

In general, a data receiver may be configured to receive data from a data transmitter through a data delivery device and display or reproduce the received data. Examples of data receivers may include multimedia playback devices such as a television or audio equipment.

A data transmitter may be configured to transmit data to a data receiver though a data delivery device in response to a request from the data receiver or a determination of the data transmitter. The data transmitter may include a connecting portion connectable to the data delivery device. Examples of data transmitters may include multi-media supply devices such as a set top box or a data box.

A data delivery device may deliver data, which is received from a data transmitter, to a data receiver. The data delivery device may include a connecting portion for connection with the data transmitter and a connecting portion for connection with the data receiver. An example of the data delivery device may include an optical cable.

The data delivery device may include at least one signal line for data signal delivery and one or more power lines for power transmission. The one or more signal lines may include optical fibres and the one or more power lines may include copper wire.

The at least one power line may include one or more standby power lines configured to transmit standby power to maintain a standby mode when the data transmitter and the data receiver are in the standby mode, and one or more main power line configured to transmit main power to maintain an operation mode when the data transmitter and the data receiver are in the operation mode.

In the following description, a display apparatus will be described as an example of a data receiver and a source device will be described as an example of a data transmitter.

<FIG> is a perspective view illustrating a cable device provided in a display apparatus, <FIG> is a perspective view illustrating the cable device, and <FIG> is a cross-sectional view illustrating a cable of the cable device.

As illustrated in <FIG>, <FIG>, and <FIG>, a display apparatus <NUM> may be connected to a source device <NUM> through a cable device <NUM>.

The display apparatus <NUM> is configured to display an image based on data received from the cable device <NUM>. The display apparatus <NUM> may include a port 1a for physical/electrical connection of the cable device <NUM>.

The source device <NUM> is configured to transmit data from various sources to the display apparatus <NUM>. The source device <NUM> may include a port 2a for physical/electrical connection of the cable device <NUM>.

The cable device <NUM> includes a cable <NUM> and a connector <NUM> connected to respective ends of the cable <NUM>. The connector <NUM> may include a first connector <NUM> at one end of the cable <NUM>, and a second connector <NUM> at the opposing end of the cable <NUM>.

The cable device <NUM> is configured to physically/electrically connect the display apparatus <NUM> to the source device <NUM>. The cable device <NUM> may include the first and second connectors <NUM> and <NUM> for providing the electrical connection between the display apparatus <NUM> and the cable device <NUM>, and the source device <NUM> and the cable device <NUM>. The cable device <NUM> may receive data from the source device <NUM> through the first connector <NUM> and transmit the received data to the display apparatus <NUM> through the second connector <NUM>. The first connector <NUM> and the second connector <NUM> may be provided with the same configuration or with different configurations.

A plug 31a may be provided in the first connector <NUM> for coupling the first connector <NUM> to the port 1a of the display apparatus <NUM>. A plug 32a may be provided in the second connector <NUM> for coupling the second connector <NUM> to the port 2a of the source device <NUM>.

The cable device <NUM> may include the cable <NUM> for connecting the first connector <NUM> to the second connector <NUM>. The cable <NUM> may interconnect the first connector <NUM> and the second connector <NUM>.

The cable <NUM> may allow light to be transmitted there through, and thus it may be difficult for a user to identify the cable <NUM> with the naked eye. The cable <NUM> may include a conductor <NUM>, a plurality of optical fibres <NUM>, a sheath <NUM> in which the conductor <NUM> and the plurality of optical fibres <NUM> are accommodated, and a filler <NUM> filling a space between the conductor <NUM> and the plurality of optical fibres <NUM>. The filler <NUM> may be a transparent material.

The sheath <NUM> and the filler <NUM> through which light is transmitted may be transparent. The sheath <NUM> and filler <NUM> may be formed of a transparent material(s) that transmit some light waves or light waves having a specific wavelength.

The conductor <NUM> may transmit power from the source device <NUM> to the display apparatus <NUM>. The conductor <NUM> may include a copper wire.

The plurality of optical fibres <NUM> may transmit an optical signal from the source device <NUM> to the display apparatus <NUM>.

The plurality of optical fibres <NUM> may provide a transmission medium for optical signals, and may be composed of a transparent core and a transparent cladding.

The core for transmission of an optical signal may be located at a centre of the optical fibres <NUM> and may have a relatively high refractive index. An optical signal may be totally reflected along a longitudinal direction in the core. The cladding, for confining the optical signal in the core, is disposed on an outside of the core and has a relatively low refractive index.

The sheath <NUM> is located on the outermost side of the cable <NUM>, and may be configured to protect the conductor <NUM> and the plurality of optical fibres <NUM> from the external environment. The sheath <NUM> may be formed of an insulating material. The sheath <NUM> may be formed of a single material such as a single piece manufactured through an extrusion process. The sheath <NUM> may have a high tensile strength and high hardness.

The sheath <NUM> may be formed of a material through which light is transmitted. For example, the sheath <NUM> may include polyvinyl chloride (PVC).

The sheath <NUM> may be formed in a tube shape, and may surround the plurality of optical fibres <NUM> to form a protective layer.

The sheath <NUM> may transmit light to be less visible to the naked eye. For example, the sheath <NUM> may be transparent to transmit light. The sheath <NUM> may allow light, which is incident to the sheath <NUM>, to pass therethrough. Further, the plurality of optical fibres <NUM>, the filler <NUM>, and the conductor <NUM> disposed in the inside of the sheath <NUM> may also transmit light.

Accordingly, a user may recognize the light passing through the sheath <NUM> according to a viewing angle, and thus the user may perceive the cable <NUM> as a floor or the periphery in which the cable <NUM> is placed. Therefore, it may be difficult for a user to recognize the cable <NUM> with the naked eye.

The cable <NUM> may not include the filler <NUM> arranged in the inside of the sheath <NUM> for filling a space around the conductor <NUM> and the plurality of optical fibres <NUM>.

The filler <NUM> may be configured to prevent the cable <NUM> from bending over a predetermined angle so as to prevent the plurality of optical fibres <NUM> from being severed due to bending. That is, the filler <NUM> may be provided to reinforce the optical fibre having a relatively low bending strength. The cable <NUM> may include the conductor <NUM> in the inside of the sheath <NUM>, and the conductor <NUM> may have a relatively high bending strength. The bending strength of the cable <NUM> may be increased due to the conductor <NUM> disposed in the inside of the sheath <NUM>. Accordingly, even when an additional filler is not provided in the inside of the sheath <NUM>, it is possible to prevent the optical fibre <NUM> from being severed, through bending of the cable <NUM>, by increasing the bending strength of the cable <NUM>.

According to the invention, the cable <NUM> of the cable device <NUM> does not include an electromagnetic interference (EMI) shielding structure.

The cable <NUM> may include the conductor <NUM> in the inside of the sheath <NUM>. In some embodiments, the cable including the conductor <NUM> may include the EMI shielding structure for shielding electromagnetic waves that are delivered from the external device to the outside of the cable through the conductor. For example, the EMI shielding structure may include aluminium foil and/or braid wire provided to surround the conductor. However, the cable including the EMI shielding structure has a colour prominent to the user, such as black. Accordingly, the cable that is visible to the user may degrade the appearance of the electronic device. In order to improve the aesthetics of an electronic device without degrading the appearance of the electronic device, the cable <NUM> may not include the EMI shielding structure. However, when the cable does not include the EMI shielding structure, it is difficult to shield EMI in the connector connected to the cable and thus a method for shielding the EMI may be required. According to the invention, for the cable device <NUM> that does not include an EMI shielding structure and includes the cable <NUM> capable of transmitting power, it is possible to improve the EMI shielding performance in the first and second connectors <NUM> and <NUM> connected to the cable <NUM>.

<FIG> is an exploded perspective view illustrating the cable device, and <FIG> is a schematic view illustrating a printed circuit board connected to the cable device.

As illustrated in <FIG> and <FIG>, the cable device <NUM> includes a metal shell <NUM> arranged between the cable <NUM> and the connector <NUM>, which may be the first connector <NUM> and/or the second connector <NUM>.

A connecting member <NUM> is provided between the cable <NUM> and the connector <NUM>. The connecting member <NUM> may be formed of an insulating material. For example, the connecting member <NUM> may be formed of a rubber or a plastic material. The connecting member <NUM> may connect the cable <NUM> and the connector <NUM>. The connecting member <NUM> may be configured to move the cable <NUM> connected to the connector <NUM> to a certain degree. The connecting member <NUM> may surround a connecting portion between the cable <NUM> and the connector <NUM>. The connecting member <NUM> may allow the cable <NUM> to be flexibly moved. The connecting member <NUM> may be formed of a flexible material including PVC, PC, and plastic.

The metal shell <NUM> is provided in the inside of the connecting member <NUM>. The metal shell <NUM> may be formed in a tube shape. The metal shell <NUM> is formed of a metallic material. The metal shell <NUM> is provided between an outside of the cable <NUM> and an inside of the connecting member <NUM>. The metal shell <NUM> may include a hollow portion 110a extending therethrough. The metal shell <NUM> may include a cylindrical metal body (tube) <NUM> defining the hollow portion 110a. The metal shell <NUM> is configured to shield EMI between the cable <NUM> and the connector <NUM>. The metal shell <NUM> may include the metal body <NUM> and a contact portion <NUM> extending from the metal body <NUM>. The contact portion <NUM> may extend from one side of the metal body <NUM>.

The metal shell <NUM> may be connected to the connector <NUM> through the contact portion <NUM>. The contact portion <NUM> may be formed of a metallic material. The contact portion <NUM> may physically/electrically connect the metal body <NUM> to the connector <NUM>. The contact portion <NUM> may be provided in the inside of the connecting member <NUM>. The contact portion <NUM> may connect the metal body <NUM> to the connector <NUM> in the inside of the connecting member <NUM>. In an example, the contact portion <NUM> may be formed separately from the metal body <NUM> and then connected. In another example, the contact portion may be integrally formed with the metal body and then assembled.

The metal shell <NUM> may allow the ground (GND) potential to flow by inducing high-frequency components or high-pressure surge noise to the metal. In addition, the metal shell <NUM> increases the impedance characteristic of the cable <NUM> so as to prevent high-frequency components or high-pressure surge noise from flowing therethrough.

The metal body <NUM> of the metal shell <NUM> may be disposed at a specific position of the cable <NUM> so as to be adjusted according to the characteristics of the system or required reduction of a frequency band.

The connector <NUM> includes a printed circuit board <NUM> connected to the cable <NUM> and provided with a ground electrode <NUM>, and a conductive case <NUM> accommodating the printed circuit board <NUM>.

The connector <NUM> may include the printed circuit board <NUM>, a plug 30a coupled to the printed circuit board <NUM> for connecting an external device to the connector <NUM>, and the case <NUM> in which the printed circuit board <NUM> is accommodated.

The printed circuit board <NUM> may include a lens unit <NUM> configured to deliver an optical signal from the plurality of optical fibres <NUM> to the printed circuit board <NUM>. An optical element and a driving integrated circuit (IC) configured to control the optical element may be provided in the lens unit <NUM>. The optical element may include a vertical cavity surface emitting laser (VCSEL) chip and a photodiode (PD) chip.

The case <NUM> may cover a front surface of the printed circuit board <NUM>. The case <NUM> may accommodate the printed circuit board <NUM> therein.

The case <NUM> may include first cases 331a and 331b that accommodate the printed circuit board <NUM> therein and second cases 332a and 332b provided on the outside of the first cases 331a and 331b and formed of an insulating material. Each case <NUM> may be provided in a pair of upper and lower portions configured to be coupled to each other.

The first cases 331a and 331b may be formed of a material having high conductivity such as a metallic material.

The second cases 332a and 332b may be in contact with the first cases 331a and 331b. The second cases 332a and 332b may include an insulating material.

The second cases 332a and 332b may cover an outer side of the first cases 331a and 331b, and thus even when the current flows through the first cases 331a and 331b, the current may not flow to the second cases 332a and 332b. Therefore, even when a user holds the second cases 332a and 332b, electric shock caused by the current delivered to the connector <NUM> through the cable <NUM> may not occur.

The printed circuit board <NUM> provided in the case <NUM> may include a plurality of electrodes <NUM> respectively connected to the conductors <NUM> of the cable <NUM>. One or more of electrodes <NUM> may be power source electrodes. The conductor <NUM> may be configured to transmit power. The conductor <NUM> may deliver power to the printed circuit board <NUM> through the power source electrodes <NUM>.

The lens unit <NUM> may be a plurality of lens units connecting the plurality of optical fibres <NUM> of the cable <NUM> to the printed circuit board <NUM> and may be provided on the printed circuit board <NUM>. The plurality of lens units <NUM> may include a plurality of jumpers and a plurality of lenses. The plurality of jumpers may be connected to the plurality of optical fibres <NUM> and serve to connect the optical fibre <NUM> to the printed circuit board <NUM>. The plurality of lens units <NUM> may be provided with jumpers and lenses respectively corresponding to the plurality of optical fibres <NUM>, and may deliver an optical signal from the printed circuit board <NUM> to the cable <NUM>.

The contact portion <NUM> of the metal shell <NUM> may be connected to the first cases 331a and 331b. One end of the contact portion <NUM> of the metal shell <NUM> may be connected to the metal body <NUM> and the other end of the contact portion <NUM> may be connected to the first cases 331a and 331b of the connector <NUM>. The contact portion <NUM> may be electrically/physically connected to the first cases 331a and 331b. The contact portion <NUM> may be connected to at least one side of the first cases 331a and 331b. The contact portion <NUM> may be connected to the printed circuit board <NUM> through the first cases 331a and 331b. The contact portion <NUM> may include at least one of a metal tube, a thin metal wire, a metal plate, a metal bar, and a braided wire. The contact portion <NUM> may be fixed to the metal body <NUM> and the connector <NUM> using at least one of brazing <NUM>, soldering, and conductive taping. The contact portion <NUM> may be fixed to the first cases 331a and 331b of the connector <NUM> using at least one of brazing <NUM>, soldering, and conductive taping.

A case <NUM>, in which the contact portion <NUM> of the metal shell <NUM> is a metal bar connecting the metal body <NUM> to the first cases 331a and 331b, has been described as an example. According to another example, the contact portion <NUM> may include at least one of a metal ring, tube or line, and may include various structures configured to physically/electrically connect the metal body <NUM> to the connector <NUM>.

In addition, the contact portion <NUM> may be adjusted to the required frequency band by adjusting the number of the metal bodies <NUM> or the size and shape of the metal body <NUM> such as a thickness or length.

<FIG> is a schematic view illustrating a metal shell of the cable device according to an embodiment of the invention, and <FIG> is a schematic view illustrating a contact portion and the metal shell. For reference numerals not shown, refer to <FIG>.

As shown in <FIG> and <FIG>, the connecting member <NUM> of the cable device <NUM> may connect the cable <NUM> and the connector <NUM>. The connecting member <NUM> is configured to allow the cable <NUM>, which is connected to the connector <NUM>, to be movable in a certain degree with respect to the connector <NUM>. The connecting member <NUM> may surround the connection between the cable <NUM> and the connector <NUM>. A cutout portion <NUM> may be formed of an insulating material. The connecting member <NUM> may include rubber or a plastic material. The connecting member <NUM> may be arranged between the cable <NUM> and the printed circuit board <NUM> and may allow the cable <NUM> therein to be flexed or bent. The connecting member <NUM> may include at least one cutout portion <NUM>. The cutout portion <NUM> of the connecting member <NUM> may allow the portion of the cable <NUM> within the connecting member to be flexed or bent. The cutout portion <NUM> may extend in a circumferential direction around the connecting member. The cutout portion <NUM> may include a slit or a hole extending in the circumferential direction of the connecting member <NUM>. The connecting member may include a plurality of cutout portions <NUM> spaced apart from each other.

The connecting member <NUM> may include a first region P1 in which the metal body <NUM> is arranged, and a second region P2 on at least one side of the first region P1 and in which the contact portion <NUM> is arranged.

The cutout portion <NUM> may be formed in the second region P2 of the connecting member <NUM>. The cutout portion <NUM> may include at least one slit <NUM>. A plurality of slits <NUM> may be spaced apart from each other. The plurality of slits <NUM> may be arranged at positions not overlapping each other.

The contact portion <NUM> of the metal shell <NUM> may be arranged so as not to overlap the cutout portion <NUM> in the second region P2 of the connecting member <NUM>. The contact portion <NUM> may include at least one of a metal wire, a thin metal, a metal plate, a metal bar, and a braided wire. The contact portion <NUM> may be disposed at a position not overlapping the cutout portion <NUM> of the connecting member <NUM> and thus the contact portion <NUM> may not be exposed to the outside. Therefore, since the contact portion <NUM> of the metal shell <NUM> may be disposed to not overlap the cutout portion <NUM> of the connecting member <NUM>, the EMI reduction performance may be maintained without damaging the appearance.

<FIG> and <FIG> are schematic views illustrating a metal shell and an adjustment device according to another embodiment of the invention, and <FIG> is a schematic view showing the adjustment device. For reference numerals not shown, refer to <FIG>.

As illustrated in <FIG>, <FIG>, and <FIG>, a metal shell 300A of a cable device 10A further includes an adjustment device 400A.

The metal shell 300A is provided to have different diameters. For example, the metal shell 300A can include first, second, and third cylindrical bodies 311A, 312A, and 313A having different diameters. The metal shell 300A includes the adjustment device 400A configured to adjust a distance among the first, second, and third cylindrical bodies 311A, 312A, and 313A having different diameters. That is, an overlap between the first, second, and third cylindrical bodies 311A, 312A, and 313A may be adjusted to adjust the overall length of the metal shell 300A.

The first cylindrical body 311A may have a first diameter d1, the second cylindrical body 312A may have a second diameter d2, and the third cylindrical body 313A may have a third diameter d3.

The first diameter d1 may be less than the second diameter d2, and the second diameter d2 may be less than the third diameter d3. The second cylindrical body 312A may be provided at one end of the first cylindrical body 311A, and the third cylindrical body 313A may be provided at one end of the second cylindrical body 312A. The first cylindrical body 311A may be accommodated in the inside of the second cylindrical body 312A, and the second cylindrical body 312A may be accommodated in the inside of the third cylindrical body 313A to provide a telescopic relationship between the cylindrical bodies 311A, 312A, and 313A.

The adjustment device 400A may be provided in the third cylindrical body 313A to move the third cylindrical body 313A in a longitudinal direction of a cable <NUM> in a sliding manner. The adjustment device 400A may include a handle 410A protruding from at least a portion of an outer circumferential surface of the third cylindrical body 313A. The handle 410A may be integrally formed with the third cylindrical body 313A.

Since a user can relatively increase or reduce a distance among the first cylindrical body 311A, the second cylindrical body 312A, and the third cylindrical body 313A by moving the handle 410A of the adjustment device 400A, the user can adjust the cable device 10A to provide electromagnetic compatibility (EMC) noise reduction for different frequency characteristics.

The adjustment device 400A may further include a guide portion 420A surrounding the handle 410A. The guide portion 420A may be formed on at least a portion of the connecting member <NUM>.

The guide portion 420A may include a guide 421A formed in the longitudinal direction on an outer circumferential surface of the connecting member <NUM>, and a plurality of guide grooves 422Aa, 422Ab, and 422Ac extending from at least portion of the guide 421A. The plurality of guide grooves 422Aa, 422Ab, and 422Ac may include a first guide groove 422Aa formed to extend from one end of the guide 421A to one side of the circumferential direction, a second guide groove 422Ab spaced apart from the first guide groove 422Aa and formed to extend from a centre of the guide 421A to one side of the circumferential direction, and a third guide groove 422Ac spaced apart from the second guide groove 422Ab and formed to extend from the other end of the guide 421A to one side of the circumferential direction.

The handle 410A of the adjustment device 400A may be fixed by at least one of the first guide groove 422Aa to the third guide groove 422Ac of the guide portion 420A. Through the adjustment device 400A, a size and length of the metal shell 300A may be adjusted according to the characteristics of the system or the required reduction of a frequency band.

<FIG> and <FIG> are schematic views illustrating a metal shell and an adjustment device according to still another embodiment of the invention. For reference numerals not shown, refer to <FIG>.

As illustrated in <FIG> and <FIG>, a metal shell 300B of a cable device included a metal band 310B formed of a metallic material.

The metal band 310B may be a plate-shaped band formed by elongating a metallic material. The metal band 310B is arranged between an outer side of the cable <NUM> and an inner side of a connecting member <NUM>. The metal band 310B may be arranged in such a way that one end thereof is fixed to at least one of the cable <NUM> or the connecting member <NUM>. A length of the metal band 310B is variable according to the number of rotations in which the metal band 310B winds around the cable <NUM>. A rotating bar 420B may be provided at the other end of the metal band 310B. The rotating bar 420B may be configured to vary the number of rotations in which the metal band 310B winds around the cable <NUM>. A guide 430B for guiding rotation of the rotating bar 420B may be formed on the connecting member <NUM>.

A user can adjust the length of the metal shell 300B by rotating the rotating bar 420B along the guide 430B formed on an outer circumferential surface of the connecting member <NUM>, and thus the user may adjust the metal shell 300B to have EMC noise reduction frequency characteristics.

As is apparent from the above description, it is possible to reduce EMC noise and to improve EMI/ESD shielding performance without including a separate shielding structure.

Claim 1:
A cable device comprising:
a cable (<NUM>) comprising an optical fiber (<NUM>);
a connector (<NUM>) comprising:
a printed circuit board (<NUM>) connected to the cable (<NUM>) and comprising a ground electrode (<NUM>), and
a conductive case (<NUM>) configured to accommodate the printed circuit board (<NUM>);
a connecting member (<NUM>) provided outside of the connector (<NUM>) and around a connection between the cable (<NUM>) and the connector (<NUM>); and
a metal shell (<NUM>, 300A) provided inside of the connecting member (<NUM>) and surrounding the cable (<NUM>),
wherein the metal shell (<NUM>, 300A) is configured to shield electromagnetic radiation emitted by the cable (<NUM>) and the connector (<NUM>), and comprises:
a plurality of cylindrical bodies (311A, 312A, 313A) coupled to each other and having different diameters, and
characterised by an adjustment device (400A) configured to telescopically adjust the plurality of cylindrical bodies (311A, 312A, 313A).