Patent Description:
In an electronic device, e. a convertible or a clamshell system, compute and high-power devices may be arranged in one section, while another section may have relatively low power compute system. Thus, a cooling budget/device performance of the one section may be improved by extending a thermal solution to the other section, e. a display or compartment space, by usage of a colling system. In addition, the device needs to transmit or receive signals wirelessly through antennas. An antenna designed for a chosen cooling system may be desired.

<CIT> discloses an electronic device including a first housing structure, a second housing structure, a display, a keyboard, a touch pad, connector holes, a first opening, a second opening or a third opening. The first housing structure may comprise a first printed circuit board comprising parts such as a processor, a wireless, communication module, a power management module. Heat conducting members are disposed in the first printed circuit board.

<CIT> discloses a device having a housing. The housing comprises an upper portion and lower portion. Further, the device comprises a heat sink formed in the upper portion.

<CIT> discloses a computing apparatus including a first chassis including primary operational circuitry of the computing apparatus, a second chassis hingeably coupled to the second chassis, the second chassis having substantially less operational circuitry than the first chassis whereby the operational circuitry of the second chassis generates substantially less heat than the operational circuitry of the first chassis and a heat spreader between the first chassis and second chassis and disposed to dissipate generated heat from the first chassis into the second chassis. <CIT> discloses an electronic device that can be configured to include a first housing, a second housing, a hinge that rotatably couples the first housing to the second housing, and a flexible heat spreader that extends from the second housing, through the hinge, and to the first housing. The hinge can accommodate deformations in the flexible heat spreader when the first housing is rotated relative to the second housing.

<FIG> are not covered by the appended claims.

From generation to generation the total system power as well as the power density of System-on-a-Chip (SoC) may increase to a significant percentage. Challenges may be to design thin and light foldable system with maximized SoC performance. In a typical foldable system, the compute and high-power devices may be arranged in one section, while the other section may house relatively low power components. Since display power and its temperature play an important role in maintaining the ergonomic limits, a cooling budget/device performance can be improved if the thermal solution may be extended to the secondary display or compartment space.

A cooling system to extend the thermal solution from one section (e. a case of an electronic device) to another section (e. a lid of an electronic device) used may be a thermal cross spread (TCS) sheet (e. a graphite material). TCS sheets may be used in fan-less systems as thermal solution. There may be challenges to place an antenna at a hinge side in such systems, due to a TCS sheet material, e. a semiconducting material, passing from case to lid of the electronic device. Thus, the antenna performance may be influenced by an arrangement of an antenna with respect to the TCS sheet. Therefore, there may be a need to improve an antenna design and/or an antenna arrangement if a TCS sheet is utilized as thermal solution in an electronic device.

Accordingly, while further examples are capable of various modifications and alternative forms, some particular examples thereof are shown in the figures and will subsequently be described in detail. However, this detailed description does not limit further examples to the particular forms described. Further examples may cover all modifications, equivalents, and alternatives falling within the scope of the disclosure. Like numbers refer to like or similar elements throughout the description of the figures, which may be implemented identically or in modified form when compared to one another while providing for the same or a similar functionality.

It will be understood that when an element is referred to as being "connected" or "coupled" to another element, the elements may be directly connected or coupled or via one or more intervening elements. If two elements A and B are combined using an "or", this is to be understood to disclose all possible combinations, i.e. only A, only B as well as A and B. An alternative wording for the same combinations is "at least one of the group A and B". The same applies for combinations of more than <NUM> Elements.

<FIG> shows a schematic view of an example of an electronic device. The electronic device <NUM> comprises a case <NUM>, a lid <NUM> and a heat spreading structure <NUM>. Further, the electronic device <NUM> comprises a hinge arrangement <NUM> between the case <NUM> and the lid <NUM>. Further, the hinge arrangement <NUM> comprises at least one hinge structure connecting the lid <NUM> to the case <NUM>. Further, the electronic device <NUM> comprises an antenna <NUM>. The antenna <NUM> is arranged in an area <NUM> of the hinge arrangement <NUM>. Further, the heat spreading structure <NUM> extends from the case <NUM> through the area <NUM> of the hinge arrangement <NUM> to the lid <NUM>.

The case <NUM> may be a base of an electronic device <NUM>, e. of a laptop. Thus, compute and/or high-power devices may be arranged in the case <NUM>. The lid <NUM> may be a housing for a display, e. of a laptop. Thus, a display may be arranged in the lid <NUM>. Therefore, a temperature of the case may be stronger increased by the compute and/or high-power devices than a temperature of the lid by the display during operation of the electronic device, leading to a temperature gradient between case <NUM> and lid <NUM>.

A heat spreading structure <NUM> may be used to transfer heat from the case <NUM> to the lid <NUM>. The heat spreading structure <NUM> may be a TCS sheet (e.g. one or more graphite or graphene sheets or one or more metal sheets). The heat spreading structure <NUM> may be thermally coupled to a heat source (e.g. CPU) in the case <NUM>. In this way, the heat spreading structure <NUM> may efficiently dissipate heat from the heat source to the lid <NUM>.

The case <NUM> and the lid <NUM> may be connected by a hinge arrangement <NUM>. The hinge arrangement <NUM> may comprise at least one hinge structure. For example, the hinge arrangement may comprise two hinge structures spaced apart from each other along an edge of the case <NUM> and/or the lid <NUM> (e. arranged at two corners of the edge, of the case <NUM> and the lid <NUM>, respectively). The hinge arrangement <NUM> may define a size of an area <NUM> of the hinge arrangement <NUM>. The area <NUM> of the hinge arrangement may be spanned between outer dimensions of two hinge structures <NUM>. Alternatively, the area <NUM> of the hinge arrangement <NUM> may be defined by a space between the case <NUM> and the lid <NUM> in an opened state of the electronic device <NUM>. For example, the area <NUM> of the hinge arrangement <NUM> may be at defined by a maximum space between the case <NUM> and the lid <NUM> in an opened state of the electronic device <NUM>.

For example, the antenna <NUM> may be arranged between two hinge structures of the hinge arrangement <NUM> or may be integrated in a hinge structure of the hinge arrangement <NUM>. The antenna <NUM> may be arranged in the area <NUM> of the hinge arrangement <NUM>, through which the heat spreading structure <NUM> extends. Thus, a radiation of the antenna <NUM> may be partially influenced, e. blocked, by the heat spreading structure <NUM>. Therefore, a position for an arrangement of the antenna <NUM> in the area of the hinge arrangement <NUM> may be crucial to the performance of the antenna <NUM>. For example, an arrangement of the antenna <NUM> in a distance to the heat spreading structure <NUM> may increase an antenna <NUM> performance in comparison to an antenna <NUM> arranged adjacent to the heat spreading structure <NUM>. For example, an arrangement of the antenna <NUM> inside an opening of the heat spreading structure may improve an antenna <NUM> performance.

More details and aspects are mentioned in connection with the examples described below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described below (e. Fig. 2a - 22b).

<FIG> shows a schematic view of another example of the electronic device. The electronic device <NUM> may be implemented similar to the electronic device described in connection with <FIG>. The electronic device <NUM> comprises a case <NUM>, a lid <NUM> and a heat spreading structure <NUM>. Further, the electronic device comprises an antenna <NUM> and a hinge structure <NUM>.

The antenna <NUM> may be integrated into an opening <NUM> of the heat spreading structure <NUM>. By integrating the antenna <NUM> into an opening <NUM> of the heat spreading structure <NUM> a required space for forming the antenna <NUM> may be reduced. Further, the opening <NUM> may be at arranged at any desired position of the heat spreading structure <NUM>, leading to an improved flexibility of arranging the antenna <NUM>. For example, the opening <NUM> (and thus the antenna <NUM>) may be arranged at any desired position in the area of the hinge arrangement.

Alternatively, the antenna <NUM> may be formed on a surface <NUM> of the heat spreading structure <NUM>. By forming the antenna <NUM> on a surface <NUM> of the heat spreading structure <NUM> a required space for forming the antenna <NUM> may be reduced. Further, the antenna <NUM> may be arranged at any desired position on the surface <NUM> of the heat spreading structure <NUM>, leading to an improved flexibility of arranging the antenna <NUM>. For example, the antenna <NUM> may be arranged at any desired position on the surface <NUM> of the heat spreading structure <NUM> in the area of the hinge arrangement.

The antenna <NUM> may be arranged in an edge region <NUM> of the heat spreading structure <NUM>. The edge region <NUM> and/or the antenna <NUM> may be extend from an edge of the heat spreading structure <NUM> to a distance from the edge of at most <NUM>% (or at most <NUM>% or at most <NUM>%) of a width the heat spreading structure <NUM>. For example, the antenna <NUM> may be arranged at an edge <NUM> of the heat spreading structure <NUM>.

The antenna <NUM> may be a flexible printed circuit (fpc) antenna. For example, the antenna <NUM> may be formed on a fpc substrate and the fpc substrate may be arranged in the opening <NUM>. Thus, the antenna <NUM> may be manufacturable independent from the heat spreading structure <NUM>.

The antenna <NUM> may be a slot antenna. For example, the antenna <NUM> may be formed by or comprise a slot opening. In this way, the antenna <NUM> may be easily integrated and/or may have low space consumption and/or may have a good beam characteristic.

The antenna <NUM> may be a patch antenna (see <FIG>). In this way, the antenna <NUM> may be easily integrated and/or may have low space consumption and/or may have a good beam characteristic.

The antenna <NUM> may have a surface area of at most <NUM><NUM>. For example, the surface area of the antenna may be at least <NUM><NUM>, or at least <NUM><NUM>, or at least <NUM><NUM> and/or at most <NUM><NUM>, or at most <NUM><NUM>, or at most <NUM><NUM>.

An area of the antenna <NUM>, e. the edge region <NUM> or the center region, may be metal painted to increase a conductivity. Thus, a performance of the antenna may be improved. Alternatively, the antenna <NUM> may be formed on a conductive fpc. The heat spreading structure <NUM>, except of the edge region and/or the center region, if an antenna <NUM> is arranged in one of these regions, may be used for grounding the antenna <NUM>. Thus, a grounding of the antenna <NUM> may be improved.

A gap between lid <NUM> and case <NUM>, may provide a RF window (antenna may radiate undisturbed under a radiation angle) and may allow the antenna <NUM> to radiate in a desired direction. Further, a connection of the heat spreading structure <NUM> with the case <NUM> and/or lid <NUM> may provide a bigger ground plane for an antenna and may improve the antenna performance.

<FIG> may show an example of an antenna implementation on an edge <NUM> of a heat spreading structure <NUM>, e. a graphite sheet. The antenna <NUM>, e. a slot antenna or an antenna pattern, may be incorporated (e. by forming a slot opening) into the heat spreading structure <NUM>, e. a graphite sheet, to get a desired resonance frequency band. The slot antenna or antenna pattern may be excited by another feed trace or coaxial cable (see <FIG>). The (slot) antenna shown in <FIG> may have a width <NUM> of at least <NUM>, or at least <NUM>, or at least <NUM> and/or at most <NUM>, or at most <NUM>, or at most <NUM> and may have a height <NUM> of at least <NUM>, or at least <NUM>, or at least <NUM> and/or at most <NUM>, or at most <NUM>, or at most <NUM>. The heat spreading structure, e. a TCS, may be considered as ground plane.

The heat spreading structure <NUM> may be a graphite sheet for thermal distribution (e. system cooling) between case <NUM> and lid <NUM>. A partial area on the graphite sheet near a barrel, e. the edge region <NUM> near a supporting structure, may be used to implement an antenna pattern - e. through a cut in graphite sheet - and metal painted to increases a conductivity or stick conductive fpc. The gap between lid and base, may provide a radio frequency window and may allow radiation of the antenna <NUM>.

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. 2b - 22b).

<FIG> shows a schematic view of another example of a heat spreading structure with antenna. The electronic device <NUM> may be implemented similar to the electronic device described in connection with <FIG> and/or 2a. The electronic device <NUM> comprises a case <NUM>, a lid <NUM> and a heat spreading structure <NUM>. Further, the electronic device comprises an antenna <NUM> and a hinge structure <NUM>.

The antenna <NUM> may be arranged in a center region <NUM> of the heat spreading structure <NUM>. The center region <NUM> may be defined by a rectangle arranged in a middle of the heat spreading structure <NUM>. Alternatively, the rectangle of the center region <NUM> may be arranged in a middle of a part of the heat spreading structure <NUM> extending through the area of the hinge arrangement. The width <NUM> of the rectangle of the center region <NUM> may be at least <NUM>% or at least <NUM>% or at least <NUM>% of a width the heat spreading structure <NUM>. Alternatively, the width <NUM> of the rectangle of the center region <NUM> may be at least a width <NUM> of the antenna <NUM>. For example, the antenna <NUM> may fit exactly with its width into the center region <NUM>. For example, a center of the antenna <NUM> may be arranged at a center of the heat spreading structure <NUM>.

<FIG> shows an example of an antenna <NUM> implementation in a middle of a heat spreading structure <NUM>, e. a graphite sheet. The antenna <NUM> can also be implemented in a center region <NUM> of the graphite sheet. The center region <NUM>, e. a partial area, may have a width <NUM> of at least <NUM>, or at least <NUM>, or at least <NUM> and/or at most <NUM>, or at most <NUM>, or at most <NUM> and may have a height <NUM> of at least <NUM>, or at least <NUM>, or at least <NUM> and/or at most <NUM>, or at most <NUM>, or at most <NUM>. The center region <NUM> may be used to implement the antenna <NUM>. The antenna <NUM> arranged in the middle - center region <NUM> - of the heat spreading structure <NUM> may be twice as long as an antenna arranged on the side/edge - e. in an edge region.

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. 2c - 22b).

<FIG> shows a schematic view of an antenna integrated into a heat spreading structure. The antenna <NUM> may be formed by an antenna pattern <NUM> on the heat spreading structure <NUM>. An outer dimension - width <NUM> and a height <NUM> - of the antenna <NUM> may be greater as an outer dimension of the antenna pattern <NUM>. The antenna pattern may be formed in an edge region <NUM>. The (patch) antenna <NUM> may be fed by an antenna feed <NUM>, which may be fed by another feed trace or coaxial cable (not shown).

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. 2d - 22b).

<FIG> shows a schematic view of another example of an antenna integrated into a heat spreading structure. The antenna <NUM> may be formed by a antenna pattern <NUM> on the heat spreading structure <NUM>. An outer dimension - width <NUM> and a height <NUM> - of the antenna <NUM> may be greater as an outer dimension of the antenna pattern <NUM>. The antenna pattern <NUM> may be formed in a center region <NUM>. The (patch) antenna <NUM> may be fed by an antenna feed <NUM>, which may be fed by another feed trace or coaxial cable (not shown).

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. <NUM> - 22b).

<FIG> shows a schematic side view of another example of an electronic device. The electronic device <NUM> may be implemented similar to the electronic device described in connection with or one or more examples of <FIG>. The electronic device <NUM> comprises a case <NUM>, a cover <NUM> for the case <NUM>, a lid <NUM>, a display <NUM> for the lid <NUM> and a heat spreading structure <NUM>. Further, the electronic device <NUM> comprises a supporting structure <NUM>, which supports a deformation of the heat spreading structure <NUM>.

The hinge arrangement may further comprise a supporting structure <NUM>, which supports a deformation of the heat spreading structure <NUM> during a relative movement of the lid <NUM> to the case <NUM>. The supporting structure <NUM> of the hinge arrangement may ease a deformation of the heat spreading structure <NUM> during operation of the electronic device <NUM>. The supporting structure <NUM> may be made of a non conducting material, e.

The antenna <NUM> may be integrated into the supporting structure <NUM>. By integrating the antenna <NUM> into the supporting structure <NUM> an arrangement flexibility of the antenna <NUM> may be increased.

The supporting structure <NUM> may comprise an inner part <NUM> and an outer part <NUM>. A shape of the inner part <NUM> and the outer part <NUM> may be a curved shape, e. A curved side of the inner part <NUM> and the outer part <NUM> may face the heat spreading structure <NUM>. For example, the curved part of a D-shape may face the heat spreading structure <NUM>. Thus, a deformation of the heat spreading structure <NUM> may be eased by the curved side of inner part <NUM> and the outer part <NUM>.

The supporting structure <NUM> may extend along a first side and along a second side of the heat spreading structure <NUM>. For example, the inner part <NUM> may extend along a side of the heat spreading structure <NUM> facing a user looking at the display <NUM> of the electronic device <NUM> and the outer part <NUM> may extend along a side of the heat spreading structure <NUM> facing a user looking at the case <NUM> or the lid <NUM>. Thus, an antenna <NUM> may be arranged on a desired side of the heat spreading structure <NUM>. For example, an antenna <NUM> may be arranged in the inner part <NUM>, leading to an improved radiation of the antenna <NUM> for an opening state of the electronic device <NUM>.

The electronic device <NUM> may further comprise a second antenna <NUM>. The antenna <NUM> may be arranged on a first side of the heat spreading structure <NUM> and the second antenna <NUM> may be arranged on a second side of the heat spreading structure <NUM>. By utilizing two antenna <NUM>, <NUM> a radiation characteristic of the electronic device <NUM> may be improved. For example, a radiation of the antenna <NUM> may be blocked by the heat spreading structure <NUM> in a first radiation direction and a radiation of the second antenna <NUM> may be blocked by the heat spreading structure <NUM> in a second radiation direction. By arranging the two antenna <NUM>, <NUM> on different sides of the heat spreading structure <NUM>, e. in the inner part <NUM> and the outer part <NUM>, the first radiation direction may be opposite to the second radiation direction. Thus, a radiation of the electronic device <NUM> may be improved by the two antennas <NUM>, <NUM>. For example, a radiation of each antenna <NUM>, <NUM> may be blocked by the heat spreading structure <NUM> in a radiation direction, in which a radiation of the other antenna <NUM>, <NUM> may be not blocked. Thus, the radiation radiated by the two antenna <NUM>, <NUM> may cover an entire space around the electronic device <NUM>.

The heat spreading structure <NUM> may transfer heat from a first region of the electronic device <NUM> to a second region of the electronic device <NUM>. For example, the first region may be a region with compute and/or high-power devices, e. a region in the case <NUM>, and the second region may be a region without compute and/or high-power devices, e. a region in the lid <NUM>. Thus, the heat spreading structure <NUM> may homogenize a thermal distribution of the electronic device <NUM>.

The heat spreading structure <NUM> may extend from a backside <NUM> of the case <NUM> to a backside <NUM> of the lid <NUM>. The backside <NUM> of the case <NUM> may face a surface on which the electronic device <NUM> may be arranged. The backside <NUM> of the lid <NUM> may be averted away from a user of the electronic device <NUM> in an opening state. For example, compute and/or high-power devices may be arranged in a proximity of the backside <NUM> of the case <NUM>, e. in a first region of the case <NUM>, and in a proximity of the backside <NUM> of the lid <NUM> none compute and/or high-power devices may be arranged, e. in a second region of the lid <NUM>. Thus, the heat spreading structure <NUM> may homogenize a thermal distribution of the electronic device <NUM>.

The heat spreading structure <NUM> may extend from a region with a heat source in the case <NUM> to the lid <NUM>. A heat source may be any electronic circuit producing heat, e. a compute or a high-power device. The heat source may be arranged in the first region. The heat source may be arranged in a proximity to the backside <NUM> of the case <NUM>. The region of the heat source may be defined by a region, in which a temperature may be increased by at least <NUM> or at least <NUM>° or at least <NUM> by the heat source. Thus, the heat spreading structure <NUM> may homogenize a thermal distribution of the electronic device <NUM>.

The heat spreading structure <NUM> may be made of a conducting material. The heat spreading structure <NUM> may be made of a semi-conductive material. The heat spreading structure <NUM> may be made of graphite or metal. Thus, a heat transfer caused by the heat spreading structure <NUM> may be improved by a conductivity of the heat spreading structure <NUM>.

The heat spreading structure <NUM> may be made in one piece. Thus, a manufacturing process of the electronic device <NUM> may be eased. Further, a heat transfer caused by a one piece heat spreading structure <NUM> may be advantageously homogenous.

The heat spreading structure <NUM> may have a sheet structure. A thickness of the heat spreading structure <NUM> may be at most <NUM>. For example, the thickness may be at most <NUM>, or at most <NUM>, or at most <NUM> or at most <NUM>. Thus, the heat spreading structure <NUM> can be arranged with small space requirement, which may lead to a decrease in a width of the electronic device <NUM>.

<FIG> shows an example of a side view of an antenna placement on a heat spreading structure, e. a TCS, and a supporting structure <NUM>. The supporting structure <NUM> comprises an inner part <NUM> and an outer part <NUM>, both also referred to as inner D-roller <NUM> and outer D-roller <NUM>. There may be two D-roller <NUM>, <NUM>, so an antenna <NUM>, <NUM> may be arranged on each D-roller (inner <NUM> and outer <NUM>) over the heat spreading structure <NUM>, e. a graphite sheet (TCS). Graphite may block the radiation from antenna, so two identical antennas may be arranged on a front and a back side of the TCS (inner <NUM> and outer D-roller <NUM>). Thus, the radiation radiated by the two antenna <NUM>, <NUM> may cover an entire space around the electronic device <NUM>.

<FIG> shows a schematic view of a heat spreading structure arranged between a supporting structure of a hinge arrangement. The hinge arrangement <NUM> comprises a supporting structure <NUM> and two hinge structures <NUM>. The supporting structure <NUM> comprises an inner part <NUM> and an outer part <NUM>. The supporting structure <NUM> may be arranged in an area <NUM> of the hinge arrangement <NUM>. The heat spreading structure <NUM> may extend through the area <NUM> of the hinge arrangement <NUM> and may be led through the supporting structure <NUM>.

The area <NUM> of the hinge arrangement <NUM> may be limited by a hinge structure <NUM> each at two opposite sides and wherein the heat spreading <NUM> structure extends between the two hinge structures <NUM> through the area <NUM> of the hinge arrangement <NUM>.

<FIG> shows an example of passive system with heat spreading structure <NUM>, e. a graphite sheet, and a supporting structure <NUM>, e. a D-roller barrel. The thermal solution (graphite sheet) may be used to spread heat below a display as well as on the case. The thermal solution may be called as thermal cross spread (TCS). Normally in cross spreading the graphite sheet may be extended and attached with a base (D-Cover), e. a case, and a lid (A-cover) for thermal cross heat spreading (TCS) as thermal solution in fan-less or passive cooling systems. The Barrel, e. supporting structure, may be separated at both sides of TCS and may have a D-shape, called as D-roller. <FIG> shows the system assembly of graphite sheet (thermal cross spreading) and D-roller barrel. The D-roller may be a plastic material and a Graphite sheet may be a semi-conductive material (thermal conducting material). The plastic D-roller may support a bending of the graphite sheet. For example, the graphite sheet may be bended with a fixed bending radius.

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. 4b - 22b).

<FIG> shows a cutout of the heat spreading structure arranged between a supporting structure of a hinge arrangement from <FIG>. The supporting structure <NUM> comprises an inner part <NUM> and an outer part <NUM>. The heat spreading structure <NUM> may be led through the supporting structure <NUM>. The inner part <NUM> and the outer part <NUM> may have a D-shape. A curved side of the inner part <NUM> and the outer part <NUM> may face the heat spreading structure <NUM>.

<FIG> shows an arrangement of an antenna in a supporting structure of an electronic device in an opening state. The electronic device <NUM> may be implemented similar to the electronic device described in connection with or one or more examples of <FIG>. The antenna <NUM> may be integrated into an inner part <NUM> of the supporting structure <NUM>. Thus, in the opening state a radiation of the antenna <NUM> may be improved. For example, a radiation of the antenna may be improved if an opening angle between lid and case may be greater as e. for tent mode.

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. 5b - 22b).

<FIG> shows another example of an arrangement of an antenna in a supporting structure of an electronic device in an opening state. The electronic device <NUM> may be implemented similar to the electronic device described in connection with or one or more examples of <FIG>. The antenna <NUM> may be integrated into an outer part <NUM> of the supporting structure <NUM>. Thus, in the opening state and /or the closed state the antenna <NUM> may radiate improved.

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e. Fig. 5c - 22b).

<FIG> shows an arrangement of an antenna in a supporting structure of an electronic device in a closed state. The electronic device <NUM> may be implemented similar to the electronic device described in connection with or one or more examples of <FIG>. The antenna <NUM> may be integrated into an outer part <NUM> of the supporting structure <NUM>. Thus, in the closed state the antenna <NUM> may radiate improved.

A Hall-effect sensor may be used to determine an opening state of the electronic device. For example, a proximity sensor, an accelerometer or other sensors may be used determine an opening state of the electronic device.

A mobile device may comprise an electronic device as described above.

The <FIG> show the antenna placement into a supporting structure <NUM>, e. a D-roller, with heat spreading structure <NUM>, e. a graphite sheet, led through the supporting structure <NUM>. A first antenna <NUM> may be arranged in an inner D-roller <NUM> and a second antenna <NUM> may be arranged in an outer D-roller <NUM>. A Hall-effect sensor may provide close lid and open lid use case information to a CPU/Modem, to select one of the antennas <NUM>, <NUM> based on a use case. Any one of the antennas (arranged back or front of graphite sheet/ inner and outer D-roller) can be selected based on the use case scenario, e. open lid mode, close lid mode, tablet mode or tent mode.

<FIG> shows a flow chart of a method for fabricating an electronic device. The method <NUM> may comprise connecting <NUM> a case and a lid with hinge structure. The hinge structure may be arranged in an area of a hinge arrangement. Further, the method may comprise arranging <NUM> a heat spreading structure. The heat spreading structure may extend from the case through the area of the hinge arrangement to the lid. Further, the method may comprise arranging <NUM> an antenna in the area of the hinge arrangement.

<FIG> shows a flow chart of a method for selecting an antenna of a plurality of antennas of an electronic device for transmitting or receiving a signal. The method <NUM> may comprise determining <NUM> an information relating to an opening state of a lid of the electronic device. Further, the method <NUM> may comprise selecting <NUM>, for transmitting or receiving a signal, an antenna of the plurality of antennas based on the determined information relating to the opening state.

By selecting an antenna based on the opening state, an antenna may be selected, which provides better performance than one or more other antennas of the electronic device in the respective opening state. In this way, the transmission performance may be improved.

An opening state may be any possible relative position of a lid to a case, e. open lid mode, close lid mode, tablet mode or tent mode. Each of the different opening states may represent an angle range between the lid and the case. The information relating to the opening state may be an angel between the lid and the case or may one of the opening states. For example, the information relating to the opening state may be determined by use of a sensor (e.g. a Hall-effect sensor or an magnetoresistive sensor).

Two antennas of the plurality of antennas may be arranged on different sides of a radiopaque structure. Further, selecting the antenna may be further based on a position of an antenna in respect to the radiopaque structure. The radiopaque structure may be a heat spreading structure, e. a graphite sheet. One of each antenna may be arranged and/or integrated into an inner part and an outer part of a supporting structure, respectively. Thus, each antenna may be arranged on a different side of the radiopaque structure. For example, an antenna arranged in the inner part may be selected for radiation if the electronic device may be in an opening state. For example, an antenna arranged in the outer part may be selected for radiation if the electronic device may be in a closed state. Thus, a radiation performance of an electronic device may be improved by a selection of an antenna less influenced by the radiopaque structure.

The method <NUM> may further comprise determining an opening angle of the lid and selecting the antenna based on the opening angle of the lid. By determine an opening angle an accuracy of a determination of an opening state may be improved. Thus, selecting <NUM> an antenna may be improved, because a space screened by the radiopaque structure of each antenna may be determined based on the opening angle. For example, an opening angle may be determined by use of a Hall-effect sensor.

The method <NUM> may further comprise selecting, for transmitting or receiving a signal, a second antenna of the plurality of antennas based on the determined opening angle of the lid. For example, if an opening angle between lid and case may be <NUM>°, two antennas may be selected for radiation, each antenna arranged on a different side of the radiopaque structure. Thus, an entire space around the electronic may be covered a radiation of two antennas.

<FIG> shows a block diagram of an example of a device for selecting an antenna. The device <NUM> comprises a sensor <NUM>, a CPU/modem <NUM>, a RF-Switch <NUM> and two antennas <NUM>, <NUM>. The sensor <NUM>, e. a Hall-effect sensor, may determine an opening state of an electronic device and may transmit an information of the opening state to the CPU/modem <NUM>. The CPU/modem may send a controlling signal and/or a RF-signal to an RF-switch <NUM>. The controlling signal and/or the RF-signal may depend on the opening state. The RF-switch <NUM> may fed the first antenna <NUM> and/or the second antenna <NUM> based on the controlling signal and/or the RF-signal.

The method may further comprise feeding a first antenna of the plurality of antennas and a second antenna of the plurality of antennas with a RF-Switch. Further, either the first antenna or the second antenna can be fed separately. Thus, during operation of an electronic device an energy consumption may be reduced, because only one antenna out of two antennas may be active.

<FIG> shows an example of an antenna selection model (BAS). The proposed technique may use a Hall-effect sensor and best antenna selection (BAS) feature of a system to achieve a required antenna performance for different use case scenarios. <FIG> shows the antenna selection for an use scenario (e. close or open lid). The sensor <NUM> may send information about a use case to a CPU/modem <NUM>. Based on this information, a control signal may be sent to a RF-switch <NUM> to select antenna <NUM> and/or antenna <NUM>. When a user may have an electronic device in open lid mode then antenna <NUM> may be active and in case of close lid mode the antenna <NUM> may be active. For example, antenna <NUM> may be arranged in an inner part and antenna <NUM> in an outer part of a supporting structure.

<FIG> shows a hinge structure for an electronic device. The hinge structure <NUM> comprises a first fastening element <NUM> mountable to a case and a second fastening element <NUM> mountable to a lid. Further the hinge structure comprises a connecting element <NUM> for pivotable connecting the first fastening element <NUM> with the second fastening element <NUM> and a feeding structure <NUM> to excite the connecting element <NUM>. The connecting element <NUM> may be used as an antenna. Thus, an assembling of the electronic device may be eased because an extra step for assembling the antenna may be unnecessary.

The connecting element <NUM> may be designed for Wi-Fi 6E and/or <NUM> multiple-input and multiple-output (MIMO) operation. For example, a dimension, e. a length, of the connecting element <NUM> may be designed to enable a radiation for Wi-Fi 6E and/or <NUM> MIMO operation. For example, the connecting element <NUM> may be a rod antenna with a base. The base of the rod antenna may be used for connecting the first fastening element <NUM> and the second fastening element <NUM>.

A length of the connecting element <NUM> may be at least <NUM> and/or at most <NUM>. For example, a length of the connecting element <NUM> may be at least <NUM>, or at least <NUM> or at least <NUM> and/or at most <NUM>, or at most <NUM> or at most <NUM>.

The feeding structure <NUM> may comprise a cable <NUM> and a cable joint <NUM>. Further, the cable joint <NUM> may be used to attach the cable <NUM> to the connecting element <NUM>. The cable <NUM> may be attached by a screw <NUM> to the cable joint <NUM>. The cable may be attached to the case by a cable clip <NUM>. Thus, a manufacturing of the hinge structure <NUM> may be eased. Further, there may be no need to led the cable <NUM> through an end of the hinge structure <NUM> mounted to an electronic device, e. the fast fastening element <NUM>. For example, a connection of the connecting element <NUM> may be eased by connecting the cable with a rod of the connecting element <NUM>.

An inner conductor of the coaxial cable <NUM> may be attached to the cable joint and an outer conductor of the coaxial cable may be attached to the case or lid. Thus, a grounding of the antenna may be improved by the case or lid.

The hinge structure may further comprise a keep out zone. The keep out zone may have a radius of at least <NUM>, or at least <NUM> or at least <NUM>. Thus, an antenna formed by the connecting element <NUM> of the hinge arrangement may have an improved radiation characteristic, because an excitation of the connecting element may be less disturbed due to the keep out zone.

The connecting element may comprise two rods and a conducting joint <NUM> to connect the two rods at one end to form a loop structure. Thus, a dipole antenna may be formed by the connecting element <NUM>.

<FIG> shows an example of a mandrel antenna on a laptop system. The connecting element <NUM>, e. a mandrel, of a hinge structure <NUM>, e. a hinge, may be proposed as antenna. The mandrel length may be extended to get required resonance frequency for Wi-Fi 6E and <NUM> MIMO operation. A RF coaxial cable may be used to fed the mandrel antenna for RF signal radiation. Any required antenna cable routing may not be routed through a hinge structure fastening element, e.g. a bracket. The antenna cable may be routed separately to the base. The solution may not require additional pcb/fpc for antenna, for direct feeding or coupling. The solution may support a hinge operation for <NUM>° rotation (convertible systems).

The Mandrel in the hinge may work as antenna. The Mandrel length may be extended (e. to a length of <NUM>) and connected with a metal joint <NUM>, e. via a lock thread <NUM>. This may form a loop structure as shown in <FIG>. A connecting joint <NUM>, e. a flange, may be attached to the mandrel to connect a live-wire (inner conductor) of an antenna cable <NUM>. A metal screw <NUM> may be used to fix a flange <NUM> and a cable <NUM> live-wire (inner conductor) end. The antenna cable <NUM> ground (outer conductor) may be connected to a system chassis, e. a case or lid, using a cable clip <NUM> for a system ground/reference. A hinge cap may be a plastic material. For better bandwidth, return loss and efficiency, the mandrel may have a keep out zone (KOZ) of <NUM> or more from any chassis part, e. case and/or lid and/or any other part of the electronic device. The proposed antenna may work analog to a folded dipole antenna. The proposed mandrel antenna may be independent of thermal cross spreading (TCS). For example, the performance of the antenna may remain the same with and without TCS, e. a graphite sheet. The mandrel antenna may do not require additional space or KOZ. It may give similar performance for all use case scenario (open lid mode, close lid mode, tablet mode or tent mode).

<FIG> shows a hinge structure mounted to a case and a lid. The hinge structure <NUM> comprises a first fastening element <NUM> mountable to a case <NUM> and a second fastening element <NUM> mountable to a lid <NUM> of an electronic device <NUM>. Further the hinge structure comprises a connecting element <NUM> for pivotable connecting the first fastening element <NUM> with the second fastening element <NUM> and a feeding structure <NUM> to excite the connecting element <NUM>. The connecting element <NUM> may be used as an antenna. Thus, a manufacturing of the electronic device may be eased by this antenna, because an extra step for assembling the antenna may be unnecessary.

<FIG> shows an arrangement of an antenna in an electronic device in open lid state. The antenna <NUM> may be formed by a connecting element. The connecting element may connect a case <NUM> and a lid <NUM> of an electronic device <NUM>.

<FIG> shows an arrangement of an antenna in an electronic device in closed lid state. The antenna <NUM> may be formed by a connecting element. The connecting element may connect a case <NUM> and a lid <NUM> of an electronic device. Thus, a manufacturing of the electronic device may be eased by this antenna, because an extra step for assembling the antenna may be unnecessary. Furthermore, the antenna formed by a connecting element may be used for every opening state of an electronic device, because a radiation from this antenna may be less influenced by a heat spreading structure and/or an opening state/opening angle of the electronic device.

<FIG> show an example of an antenna location in open lid and close lid use cases.

<FIG> shows simulations of a magnitude of a S11-parameter in Db (<FIG>) and a total efficiency (<FIG>) as a function of the frequency for an antenna integrated into a heat spreading structure. <FIG> shows an example of a graphite sheet antenna - antenna integrated into an opening of a heat spreading structure or formed on a surface of a heat spreading structure - return loss, S11. paramater <NUM> in dB. The simulated return loss of a graphite sheet antenna is shown in <FIG>. The result shows that the antenna may give a wideband response. The return loss may be below -<NUM> dB for Wi-Fi 6E frequencies (<NUM>-<NUM> and <NUM>-<NUM>) and <NUM> MIMO frequencies (<NUM>-<NUM> and <NUM>-<NUM>).

<FIG> shows an example of a graphite sheet antenna total efficiency <NUM> in dB. The total efficiency <NUM> may be above -3dB for a wide frequency band. Thus, the proposed graphite sheet antenna as described above may be used for Wi-Fi 6E frequencies (<NUM>-<NUM> and <NUM>-<NUM>) and <NUM> MIMO frequencies (<NUM>-<NUM> and <NUM>-<NUM>).

More details and aspects are mentioned in connection with the examples described above and/or below. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e. <FIG>) and/or below (e.

<FIG> shows simulations of a magnitude of a S11-parameter in Db (<FIG>) and a total efficiency (<FIG>) as a function of the frequency for an antenna integrated into a hinge structure. <FIG> shows an example of a mandrel antenna - antenna integrated into a hinge structure - return loss, S11 in dB for an open lid state <NUM> and a clos lid state <NUM> use cases.

The simulated return loss and efficiency data show that the proposed mandrel antenna gives a wideband response. The operating bands cover <NUM> MIMO frequency bands (<NUM>-<NUM> and <NUM>-<NUM>) and Wi-Fi 6E frequency bands (<NUM>-<NUM>, <NUM>-<NUM> and <NUM>-<NUM>). The return loss may be for open lid <NUM> below -<NUM> dB for operating bands. The return loss may be for closed lid <NUM> below -<NUM> dB for operating bands.

<FIG> shows an example of a mandrel antenna total efficiency in dB in open lid <NUM> and clos lid <NUM> use cases. The total efficiency for open lid <NUM> may be above -2dB for a wide frequency band. The total efficiency for closed lid <NUM> may be above -3dB for a wide frequency band. Thus, the proposed mandrel antenna as described above may be used for Wi-Fi 6E frequencies (<NUM>-<NUM> and <NUM>-<NUM>) and <NUM> MIMO frequencies (<NUM>-<NUM> and <NUM>-<NUM>).

More details and aspects are mentioned in connection with the examples described above. The example shown in <FIG> may comprise one or more optional additional features corresponding to one or more aspects mentioned in connection with the proposed concept or one or more examples described above (e.

Some embodiments relate to antennas design method and implementation technology in thermal cross spreading system. Most of the antenna may work with laptop mode (open lid/ clamshell), if arranged on lid or case, but performance (efficiency) may drop in close lid mode, tablet mode, tent mode and other use case scenario, which causes a drop in throughput of wireless. Achieving antenna performance may be also in narrow bezel and thin system design challenging. Above an antenna design and placement solutions is described, which can utilize a thermal cross spreading area. The proposed solution may help to meet all the antenna required performance and coexistence with graphite sheet/thermal cross spread.

Recent development in passive cooling systems utilize a heat spreading structure, e. a graphite sheet, used as thermal cross spreading between case (D-cover) and lid (A-cover). A plastic barrel (e. supporting structure) may be divided in two parts to support the graphite sheet, e. a deformation. The barrel divided parts may have a D-shape to support a deformation, e. a bending, of the graphite sheet. An antenna placement described above may be on a front and a back side of the graphite sheet (TCS) integrated in a plastic D-roller and optionally with enabled Best Antenna Selection (BAS) feature. The BAS feature may be used to switch between the antennas based on its performance and use case scenario. A Hall-effect sensor, a proximity sensor, accelerometer or other sensors may give information about a close/open lid and other use case information to CPU/Modem, to select one of the antennas for BAS feature. Thus, the antenna may give a high gain (directionality increases) with backed graphite sheet.

Another proposal may be that a partial area of a graphite sheet itself may be proposed as antenna. A slot antenna or an antenna pattern may be made in a graphite sheet to get a desired resonance frequency band. The slot antenna or antenna pattern may be excited by another feed trace or coaxial cable. The antenna area on a graphite sheet near a barrel (e. a hinge structure) may be metal painted to increase the conductivity or stick conductive fpc and a rest of the graphite material may be used to increase a grounding for the antenna. The gap between lid and base (e. case), may provide RF window and may allow radiation. The solution may not affect the thermal performance of the system. The graphite sheet connection with A-cover (e. lid) and D-cover (e. case) may provide a bigger ground plane for antenna that will improve the antenna performance.

Another proposal may be the use of a hinge mandrel as antenna in a convertible system. Here the mandrel may be proposed as antenna (radiator). The mandrel may be directly fed with coaxial cable and its length may be extended to get resonance at desired frequency band. The mandrel antenna performance may be independent to TCS. The mandrel antenna may not require additional space or KOZ. This antenna may not require additional pcb/fpc for antenna for direct feeding or coupling. The proposed antenna may support a hinge operation for <NUM>° rotation (e. for convertible systems). The mandrel antenna may give similar performance for all use case scenario (e. open lid mode, close lid mode, tablet mode, tent mode). The mandrel antenna performance may be independent to TCS.

<FIG> illustrates a user device <NUM> in accordance with an aspect. The user device <NUM> may be a mobile device in some aspects and includes an application processor <NUM>, baseband processor <NUM> (also referred to as a baseband module), radio front end module (RFEM) <NUM>, memory <NUM>, connectivity module <NUM>, near field communication (NFC) controller <NUM>, audio driver <NUM>, camera driver <NUM>, touch screen <NUM>, display driver <NUM>, sensors <NUM>, removable memory <NUM>, power management integrated circuit (PMIC) <NUM> and smart battery <NUM>. An application processor <NUM> may be arranged in a proximity of a heat spreading structure. For example, the application processor <NUM> may be a heat source, e. in a first region. Thus, the heat spreading may improve a thermal solution by transfer heat from the application region to another region without heat source in an electronic device.

In some aspects, application processor <NUM> may include, for example, one or more CPU cores and one or more of cache memory, low drop-out voltage regulators (LDOs), interrupt controllers, serial interfaces such as serial peripheral interface (SPI), inter-integrated circuit (I2C) or universal programmable serial interface module, real time clock (RTC), timercounters including interval and watchdog timers, general purpose input-output (IO), memory card controllers such as secure digital / multi-media card (SD/MMC) or similar, universal serial bus (USB) interfaces, mobile industry processor interface (MIPI) interfaces and Joint Test Access Group (JTAG) test access ports.

In some aspects, baseband module <NUM> may be implemented, for example, as a solderdown substrate including one or more integrated circuits, a single packaged integrated circuit soldered to a main circuit board, and/or a multi-chip module containing two or more integrated circuits.

<FIG> illustrates an exemplary millimeter wave communication circuitry <NUM> according to some aspects. Circuitry <NUM> is alternatively grouped according to functions. Components as shown in <NUM> are shown here for illustrative purposes and may include other components not shown here in <FIG>.

Millimeter wave communication circuitry <NUM> may include protocol processing circuitry <NUM>, which may implement one or more of medium access control (MAC), radio link control (RLC), packet data convergence protocol (PDCP), radio resource control (RRC) and non-access stratum (NAS) functions. Protocol processing circuitry <NUM> may include one or more processing cores (not shown) to execute instructions and one or more memory structures (not shown) to store program and data information.

Millimeter wave communication circuitry <NUM> may further include digital baseband circuitry <NUM>, which may implement physical layer (PHY) functions including one or more of hybrid automatic repeat request (HARQ) functions, scrambling and/or descrambling, coding and/or decoding, layer mapping and/or de-mapping, modulation symbol mapping, received symbol and/or bit metric determination, multi-antenna port pre-coding and/or decoding which may include one or more of space-time, space-frequency or spatial coding, reference signal generation and/or detection, preamble sequence generation and/or decoding, synchronization sequence generation and/or detection, control channel signal blind decoding, and other related functions.

Millimeter wave communication circuitry <NUM> may further include transmit circuitry <NUM>, receive circuitry <NUM> and/or antenna array circuitry <NUM>.

Millimeter wave communication circuitry <NUM> may further include radio frequency (RF) circuitry <NUM>. In an aspect of the invention, RF circuitry <NUM> may include multiple parallel RF chains for one or more of transmit or receive functions, each connected to one or more antennas of the antenna array <NUM>.

In an aspect of the disclosure, protocol processing circuitry <NUM> may include one or more instances of control circuitry (not shown) to provide control functions for one or more of digital baseband circuitry <NUM>, transmit circuitry <NUM>, receive circuitry <NUM>, and/or radio frequency circuitry <NUM>.

<FIG> illustrate examples for transmit circuitry <NUM> in <FIG> in some aspects.

The exemplary transmit circuitry <NUM> of <FIG> may include one or more of digital to analog converters (DACs) <NUM>, analog baseband circuitry <NUM>, up-conversion circuitry <NUM> and filtering and amplification circuitry <NUM>. In another aspect, 15C illustrates an exemplary transmit circuitry <NUM> which includes digital transmit circuitry <NUM> and output circuitry <NUM>.

<FIG> illustrates an exemplary radio frequency circuitry <NUM> in <FIG> according to some aspects.

Radio frequency circuitry <NUM> may include one or more instances of radio chain circuitry <NUM>, which in some aspects may include one or more filters, power amplifiers, low noise amplifiers, programmable phase shifters and power supplies (not shown).

Radio frequency circuitry <NUM> may include power combining and dividing circuitry <NUM> in some aspects. In some aspects, power combining and dividing circuitry <NUM> may operate bidirectionally, such that the same physical circuitry may be configured to operate as a power divider when the device is transmitting, and as a power combiner when the device is receiving. In some aspects, power combining and dividing circuitry <NUM> may one or more include wholly or partially separate circuitries to perform power dividing when the device is transmitting and power combining when the device is receiving. In some aspects, power combining and dividing circuitry <NUM> may include passive circuitry comprising one or more two-way power divider/combiners arranged in a tree. In some aspects, power combining and dividing circuitry <NUM> may include active circuitry comprising amplifier circuits. In some aspects, radio frequency circuitry <NUM> may connect to transmit circuitry <NUM> and receive circuitry <NUM> in <FIG> via one or more radio chain interfaces <NUM> or a combined radio chain interface <NUM>.

In some aspects, one or more radio chain interfaces <NUM> may provide one or more interfaces to one or more receive or transmit signals, each associated with a single antenna structure which may comprise one or more antennas.

In some aspects, the combined radio chain interface <NUM> may provide a single interface to one or more receive or transmit signals, each associated with a group of antenna structures comprising one or more antennas.

Figure 15E illustrates exemplary receive circuitry <NUM> in <FIG> according to some aspects. Receive circuitry <NUM> may include one or more of parallel receive circuitry <NUM> and/or one or more of combined receive circuitry <NUM>.

In some aspects, the one or more parallel receive circuitry <NUM> and one or more combined receive circuitry <NUM> may include one or more Intermediate Frequency (IF) downconversion circuitry <NUM>, IF processing circuitry <NUM>, baseband down-conversion circuitry <NUM>, baseband processing circuitry <NUM> and analog-to-digital converter (ADC) circuitry <NUM>.

<FIG> illustrates RF circuitry XREFto3325 according to some aspects.

In an aspect, RF circuitry XREFto3325 may include one or more of each of IF interface circuitry <NUM>, filtering circuitry <NUM>, upconversion and downconversion circuitry <NUM>, synthesizer circuitry <NUM>, filtering and amplification circuitry <NUM>, power combining and dividing circuitry <NUM> and radio chain circuitry <NUM>.

<FIG> illustrates a multi-protocol baseband processor <NUM> in an aspect.

In an aspect, baseband processor may contain one or more digital baseband systems <NUM>. In an aspect, the one or more digital baseband subsystems <NUM> may be coupled via interconnect subsystem <NUM> to one or more of CPU subsystem <NUM>, audio subsystem <NUM> and interface subsystem <NUM>.

In an aspect, the one or more digital baseband subsystems <NUM> may be coupled via interconnect subsystem <NUM> to one or more of each of digital baseband interface <NUM> and mixed-signal baseband sub-system <NUM>.

In an aspect, interconnect subsystem <NUM> and <NUM> may each include one or more of each of buses point-to-point connections and network-on-chip (NOC) structures.

In an aspect, audio sub-system <NUM> may include one or more of digital signal processing circuitry, buffer memory, program memory, speech processing accelerator circuitry, data converter circuitry such as analog-to-digital and digital-to-analog converter circuitry, and analog circuitry including one or more of amplifiers and filters.

In an aspect, boot loader sub-system <NUM> may include digital logic circuitry configured to perform configuration of the program memory and running state associated with each of the one or more DSP sub-systems <NUM>. Configuration of the program memory of each of the one or more DSP sub-systems <NUM> may include loading executable program code from storage external to baseband processing sub-system (<NUM> cross reference). Configuration of the running state associated with each of the one or more DSP sub-systems <NUM> may include one or more of the steps of: setting the state of at least one DSP core which may be incorporated into each of the one or more DSP sub-systems to a state in which it is not running, and setting the state of at least one DSP core which may be incorporated into each of the one or more DSP sub-systems into a state in which it begins executing program code starting from a predefined memory location.

In an aspect, shared memory sub-system <NUM> may include one or more of read-only memory (ROM), static random access memory (SRAM), embedded dynamic random access memory (eDRAM) and non-volatile random access memory (NVRAM).

In an aspect, digital I/O subsystem <NUM> may include one or more of serial interfaces such as I2C, SPI or other <NUM>, <NUM> or <NUM>-wire serial interfaces, parallel interfaces such as generalpurpose input-output (GPIO), register access interfaces and direct memory access (DMA). In an aspect, a register access interface implemented in digital I/O subsystem <NUM> may permit a microprocessor core external to baseband processing subsystem (<NUM> cross reference) to read and/or write one or more of control and data registers and memory. In an aspect, DMA logic circuitry implemented in digital I/O subsystem <NUM> may permit transfer of contiguous blocks of data between memory locations including memory locations internal and external to baseband processing subsystem (<NUM> cross reference).

In an aspect, digital baseband interface sub-system <NUM> may provide for the transfer of digital baseband samples between baseband processing subsystem (<NUM> cross reference) and mixed signal baseband or radio-frequency circuitry external to baseband processing subsystem (<NUM> cross reference). In an aspect, digital baseband samples transferred by digital baseband interface sub-system <NUM> may include in-phase and quadrature (I/Q) samples.

In an aspect, controller sub-system <NUM> may include one or more of each of control and status registers and control state machines. In an aspect, control and status registers may be accessed via a register interface and may provide for one or more of: starting and stopping operation of control state machines, resetting control state machines to a default state, configuring optional processing features, configuring the generation of interrupts and reporting the status of operations. In an aspect, each of the one or more control state machines may control the sequence of operation of each of the one or more accelerator sub-systems <NUM>.

Examples may also cover program storage devices, such as digital data storage media, which are machine-, processor- or computer-readable and encode and/or contain machine-executable, processorexecutable or computer-executable programs and instructions.

Claim 1:
An electronic device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprising:
a case (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>);
a lid (<NUM>; <NUM>; <NUM>; <NUM>);
a heat spreading structure (<NUM>; <NUM>; <NUM>; <NUM>);
a hinge arrangement (<NUM>; <NUM>) between the case (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) and the lid (<NUM>; <NUM>; <NUM>; <NUM>), wherein the hinge arrangement (<NUM>; <NUM>) comprises at least one hinge structure (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) connecting the lid (<NUM>; <NUM>; <NUM>; <NUM>) to the case (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>); and
an antenna (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>; <NUM>), wherein the antenna (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>; <NUM>) is arranged in an area (<NUM>; <NUM>) of the hinge arrangement (<NUM>; <NUM>), and wherein the heat spreading structure (<NUM>; <NUM>; <NUM>; <NUM>) extends from the case (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) through the area (<NUM>; <NUM>) of the hinge arrangement (<NUM>; <NUM>) to the lid (<NUM>; <NUM>; <NUM>; <NUM>).