DATA COMMUNICATION CIRCUIT

Description

Domaine technique

[0001] This description relates generally to electronic devices, in particular the communication of data between electronic devices. Technique antérieure

[0002] In many applications, electronic devices, such as computers, mobile phones, hard drives, workstations, video displays, etc., exchange data. For this purpose, these devices are each equipped with a data communication circuit, which receives data to be transmitted, and provides this data to a communication element such as a cable or an antenna.

[0003] WO 2018 / 234242 relates to a cable and a male connector connectable to the cable for the transmission of power and data, in the context of power supply applications.

[0004] WO°2009 / 123077 relates to a communication device and a method for controlling the device. Summary of the invention

[0005] The invention is set forth in the attached set of claims. Brève description des dessins

[0006] These and other features and advantages will be set forth in detail in the following description of particular embodiments given without limitation in relation to the attached figures, among which: there figure 1 represents, in a very schematic manner, an embodiment of a data communication circuit; the figure 2 represents, in a very schematic manner, another embodiment of a data communication circuit; the figure 3 represents, in a very schematic manner, an embodiment of a device comprising a data communication circuit and a wireless transmission / reception circuit; the figure 4 represents, in a very schematic manner, an embodiment of a mobile device in place on a support for mobile device; the figure 5 represents, in a very schematic manner, data communication and power supply circuits, included in the support and the mobile device of the figure 4 ; there figure 6 represents, schematically and partially, an embodiment of a wireless communication and power supply device, connected to a mobile device; the figure 7 represents, in a very schematic manner, data communication and power supply circuits, included in the communication and power supply device and in the mobile device of the figure 6 ; there figure 8 schematically represents an embodiment of a data communication circuit; the figure 9 schematically represents another embodiment of a data communication circuit; the figure 10 schematically represents, but in more detail, the communication circuit of the figure 8 connected to a data processing unit; and the figure 11 represents, schematically but in more detail, the communication circuit of the figure 9 . Description des modes de réalisation

[0007] The same elements have been designated by the same references in the different figures. In particular, the structural and / or functional elements common to the different embodiments may have the same references and may have identical structural, dimensional and material properties.

[0008] For the sake of clarity, only the steps and elements useful for understanding the described embodiments have been shown and are detailed. In particular, data processing units such as a microprocessor and wireless data transmission / reception circuits have not been described in detail, the described embodiments being compatible with conventional data processing units and conventional wireless data transmission / reception circuits.

[0009] Unless otherwise specified, when two elements are referred to connected together, this means directly connected without intermediate elements other than conductors, and when two elements are referred to connected or coupled together, this means that these two elements can be connected or be connected or coupled through one or more other elements.

[0010] In the following description, when reference is made to absolute position qualifiers, such as the terms "front", "back", "top", "bottom", "left", "right", etc., or relative position qualifiers, such as the terms "above", "below", "upper", "lower", etc., or to orientation qualifiers, such as the terms "horizontal", "vertical", etc., reference is made, unless otherwise specified, to the orientation of the figures or to a mobile device support in a normal position of use.

[0011] Unless otherwise specified, the expressions "about", "approximately", "substantially", and "of the order of" mean to within 10%, preferably to within 5%.

[0012] There figure 1 represents, in a very schematic manner, an embodiment of a data communication circuit 100. The circuit 100 comprises two inputs, 115 and 125, and one output 135.

[0013] In operation, the circuit 100 receives data 110 (DATA). In the example shown, the data 110 are in series and arrive at the circuit 100 via the input 115. The input 115 comprises, for example, two terminals, and the data correspond to successive voltage differences between these two terminals. Preferably, the data 110 comprises, or consists of, data of the USB 3.0 (or USB 3.1 Gen 1) type or higher, i.e., data having a flow rate greater than or equal to 5 Gbits / s. The USB type data may be of the USB 3.1 (or USB 3.1 Gen 2) type or higher, i.e., data having a flow rate greater than or equal to 10 Gbits / s. Alternatively, the data 110 may comprise, or be constituted by, video data, that is to say data containing information making it possible to reconstruct a succession of images optionally accompanied by sound.

[0014] The circuit 100 further receives, in parallel with the data 110, power supply configuration data 120 (PD, "Power Delivery"), i.e. data containing voltage and / or current and / or electrical power and / or charge state and / or charge profile information. The power supply configuration data 120 preferably arrives in series at the circuit 100 via an input 125 of the circuit 100. For example, the input 125 comprises two terminals and the data 120 correspond to voltage variations between these two terminals.

[0015] The circuit 100 serializes the power supply configuration data 120 and the data 110. The circuit 100 then provides the data 120 and 110 in series. More specifically, the circuit 100 provides, on an output 135, data 130 (DATA+PD) comprising the power supply configuration data 120 in series with the data 110. For example, the data 130 consists of the data 110 and 120 in series and markers making it possible to distinguish, among the data 130, which are the data 110 and which are the data 120. The data 130 preferably has an average rate equal to or greater than the sum of the rates of the data 110 and 120.

[0016] The data 130 may be transmitted to an external device (not shown). Because the data 110 and 120 are provided serially, they may be transmitted over a single communication link with the external device, for example a wireless communication channel. The data 110 and the power supply configuration data 120 are thus simpler to transmit than in parallel over separate communication links.

[0017] There figure 2 represents, in a very schematic manner, an embodiment of a data communication circuit 200. The circuit 200 comprises an input 235, and two outputs, 215 and 225.

[0018] The circuit 200 receives in series the data 130 (DATA+PD) described above in relation to the figure 1 . Circuit 200 extracts data 110 (DATA) and 120 (PD) ( figure 1 ) data 130. The circuit 200 provides the data 110 and 120 in parallel on the two respective separate outputs 215 and 225. Each output 215 or 225 comprises, for example, two terminals between which the circuit 200 applies a potential difference corresponding to the data 110 or 120. Preferably, the data 110 is provided in series on the output 215. Preferably, the power supply configuration data 120 is provided in series on the output 225.

[0019] The data 130 may originate from an external device not shown. Because the data 110 and 120 are serial, they may be received over a single communication link, for example wirelessly. The data 110 and the power supply configuration data 120 are therefore simpler to receive than from two separate communication links.

[0020] There figure 3 represents, very schematically, an embodiment of a device 300 comprising a data communication circuit 305 and a wireless transmission / reception circuit 310.

[0021] Circuit 305 includes a circuit 100 of the type of that of the figure 1 , and a 200 circuit of the type of that of the figure 2 The output 135 of the circuit 100 is connected, preferably connected, to an input 312 (TX) of the transmission / reception circuit 310. The input 235 of the circuit 200 is connected, preferably connected, to an output 314 (RX) of the transmission / reception circuit 310.

[0022] In operation, the circuit 100 receives power supply configuration data 120T (PD) to be transmitted, and data 110T (DATA) to be transmitted, of the type of the respective data 110 and 120 described in connection with the figure 1 . The circuit 100 then produces on its output 135 serial data 130T comprising the data 110T and 120T and in series, of the type of data 130 of the figure 1 . The 130T data is then transmitted by the circuit 310. Preferably, the 130T data is carried by radiofrequency waves transmitted by an antenna 316 of the circuit 310. The transmission frequency of the radiofrequency waves is preferably greater than 60 GHz. This makes it possible to transmit the 130T data when the 110T data is of the USB 3.0 type or higher.

[0023] The circuit 310 receives serial data 130R, for example from a device (not shown) which receives the data 130T. The data 130R is preferably carried by radiofrequency waves picked up by the antenna 316, or by an antenna (not shown) separate from the antenna 316. The data 130R is of the type of data 130 described in relation to the figure 1 , that is, they comprise power supply configuration data in series with other data. The circuit 200 receives the data 130R via its input 235. The circuit 200 extracts, from the data 130R, the power supply configuration data (data 120R). The circuit 200 provides, on its output 225, the power supply configuration data 120R. The circuit 200 further extracts, from the data 130R, data 110R of the type of data 110 described in connection with the figure 1 . Circuit 200 provides data 110R on its output 215.

[0024] There figure 4 depicts an embodiment of a mobile device 400 in place in an embodiment of a mobile device holder 410.

[0025] The mobile device 400 is for example a mobile phone, or a tablet. The mobile device 400 can be constituted by any device equipped with a data processing unit, for example a microprocessor (not shown in figure 4 ). Preferably, the mobile device 400 further comprises a rechargeable electrical energy reserve such as a battery, for example a lithium battery (not shown).

[0026] The support 410 comprises a location 412 intended to receive the mobile device. In the example shown, the mobile device has the shape of a flat plate having two opposite main faces 420 and 422. The location 412 comprises for example a flat face 424 which, once the device 400 is in place, is in contact with the face 422. In the case where the mobile device 400 comprises a display screen, the latter is preferably located on the side of the face 420. In the example shown, in a normal position of use, the face 424 is inclined, and is limited on its lower edge by a shoulder 426. An edge 428 of the mobile device is then positioned against the shoulder. Alternatively, the face 424 is horizontal in a normal position of use. The shoulder 426 can then be omitted, and the mobile device can be placed in any position on the face 424.

[0027] Preferably, the holder includes one or more magnets 430. Preferably, the mobile device 400 includes a ferromagnetic element 432. When the mobile device is in place in the holder 410, the one or more magnets 430 and the ferromagnetic element 432 create a force that holds the mobile device 400 in place on the holder 410.

[0028] Preferably, the support 410 is intended to be connected by a cable 440 to a device 450 comprising a power supply source. The device 450 is constituted for example by a computer, a workstation, an image display monitor, an image projector, etc. Preferably, the device 450 comprises digital circuits such as data processing circuits, for example a microprocessor. Alternatively, the support 410 comprises a power supply source. The support 410 may also comprise a data processing unit such as a microprocessor.

[0029] There figure 5 represents, in a very schematic manner, communication and power supply circuits included in the support 410 and the mobile device 400 of the figure 4 . The mobile device typically includes other circuits. These other circuits are neither shown nor detailed, the embodiments described being compatible with the usual circuits of mobile devices.

[0030] The support 410 includes a data communication circuit 300A, comprising the same elements as the circuit 300 of the figure 3 . The 300A circuit therefore includes a 100 circuit ( figure 1 ), a 200 circuit ( figure 2 ), and a 310 circuit ( figure 3 ) wireless serial transmission and / or reception comprising an antenna 316. Thus, the circuit 300A is configured to receive, on its input 115, serial data preferably of the USB 3.0 or higher type, and, on its input 125, power supply configuration data. The antenna 316 of the circuit 300A serially transmits the data received on the inputs 115 and 125 of the circuit 300A. The circuit 300A is further configured to receive via its antenna 316 serial data, preferably of the USB 3.0 or higher type, in series with power supply configuration data. The circuit 300A provides the serial data on its output 215 and the power supply configuration data on its output 225.

[0031] The support 410 further comprises an inductor 455A. The inductor 455A has its terminals connected, preferably connected, to a circuit 460A. The circuit 460A has terminals 462A and 464A for applying a supply voltage, for example a direct voltage VBUS referenced with respect to the ground GNDA of the support 410. The terminals 462A and 464A are for example connected, preferably connected, for example by the cable 440, to a power source included in the device 450 ( figure 4 ). Alternatively, terminals 462A and 464A are connected to a power supply internal to the support 410.

[0032] Preferably, the mobile device 400 comprises a circuit 300B, comprising the same elements as the circuit 300 of the figure 3 . Circuit 300B therefore includes a circuit 100 ( figure 1 ), a 200 circuit ( figure 2 ), and a 310 circuit ( figure 3 ) for wireless transmission and / or reception in series, comprising an antenna 316. Thus, the circuit 300B is configured to receive, on its input 115, data, preferably of the USB 3.0 or higher type, and, on its input 125, power supply configuration data. The antenna 316 transmits in series the data received in parallel on the inputs 115 and 125 of the circuit 300B. The circuit 300B is further configured to receive via its antenna 316 serial data, preferably of the USB 3.0 or higher type, in series with power supply configuration data. The circuit 300B provides the serial data on its output 215 and the power supply configuration data on its output 225. The outputs 215 and 225 of the circuit 300B are connected, preferably connected, to circuits of the mobile device, for example to a microprocessor 510.

[0033] The mobile device 400 further comprises an inductor 455B. When the mobile device 400 is in place on the base 410, the inductors 455A and 455B are in mutual coupling. The inductor 455B has its terminals connected, preferably connected, to a circuit 460B. The circuit 460B has terminals 462B and 464B connected, preferably connected, to other elements of the mobile device, for example to an electrical energy storage 520 located in the mobile device. The energy storage 520 comprises for example a battery.

[0034] In operation, 110A data, preferably USB 3.0 or higher type data, and 120A power supply configuration data arrive at the respective inputs 115 and 125 of the 300A circuit. The 110A data comes for example from the device 450 ( figure 4 ). For example, 110A and 120A data are carried by cable 440.

[0035] The data 110A and 120A are serialized and transmitted by the circuit 300A. The serial data 110A and 120A arrive wirelessly at the circuit 300B, and are received by the circuit 300B. The circuit 300B then provides the data 110A and 120A on the respective outputs 215 and 225. The data 110A are, for example, received by the circuits of the mobile device 400, for example by the microprocessor 510.

[0036] Similarly, data 110B, preferably USB 3.0 or higher type data, and power supply configuration data 120B arrive at the respective inputs 115 and 125 of the circuit 300B. The data 110B and 120B come for example from the microprocessor 510.

[0037] The data 110B and 120B are serialized and transmitted by the circuit 300B. The data 110B and 120B reach the circuit 300A wirelessly. The circuit 300A then provides the data 110B and 120B in parallel on the respective outputs 215 and 225 of the circuit 300A. The data 110B are for example carried by the cable 440. The data reach for example the device 450.

[0038] Thus, when the mobile device 400 is in place on the support 410, the mobile device and the support can exchange USB 3.0 or higher data and, simultaneously, power supply configuration data. The exchanged power supply configuration data 120A and 120B preferably contain information concerning the supply voltage and / or the charging state and / or the supply power and / or the supply current of the mobile device 400. The data 120A and 120B preferably correspond to the standard known as "USB Power Delivery".

[0039] In application of the exchanged power supply configuration data, the circuit 460A applies an alternating voltage to the inductor 455A. This alternating voltage is transmitted by mutual coupling to the inductor 455B. The alternating voltage at the terminals of the inductor 455B is used as a power source by the circuit 460B to produce on the terminals 462B and 464B a supply voltage V, for example referenced with respect to the ground of the mobile device.

[0040] Thus, when the mobile device 400 is in place on the support 410, the mobile device and the support can exchange data, and at the same time the mobile device can be recharged. The supply power is preferably between 1 W and 15 W.

[0041] This data exchange and charging are carried out without the intermediary of a male connector and a female connector connected to each other, such as USB type connectors. This avoids problems that would arise if the data and electrical energy were carried via such connectors, such as problems with connection reliability. Such problems arise in particular after several plugging and unplugging cycles. Furthermore, a mobile device comprising a female USB connector has a thickness greater than that of the connector. In the absence of this connector, the mobile device 400 can therefore have a reduced thickness.

[0042] There figure 6 schematically and partially represents an embodiment of a wireless communication and power supply device 600, connected to a mobile device 610. Only a portion of the mobile device 610 is shown. The mobile device 610 is of the type of the mobile device 400 of the figure 4 , except that it may optionally be devoid of the inductor 455B. For example, the mobile device 610 is a mobile telephone in the form of a flat plate, an edge 612 of which is shown near a corner 614 of the plate, for example a rounded corner.

[0043] The device 600 comprises a body 620 located at one end of a cable 630. The cable 630 has for example its other end connected to a device of the type of the device 450 described in relation to the figure 4 .

[0044] The body comprises two spring contact terminals 622. The spring contact terminals are preferably of the type known under the trade name "PoGo". Each terminal then comprises a housing 624 opening onto the side of the mobile device, in which is located a conductive contact element 626 and a spring 628 bearing between the bottom of the housing 624 and the contact element 626. Each element 626 is connected to a wire 632 passing in the cable 630. When the device 600 is in place against the edge of the mobile device 610, the springs 628 create a force which keeps the mobile elements 626 in contact with the mobile device.

[0045] The mobile device comprises two electrically conductive contact areas 640. The contact areas are positioned so that each is in contact with one of the elements 626 when the device 600 is in place against the mobile device 610. The conductive wires 632 are thus electrically connected to the contact areas 640 of the mobile device 610. The contact areas 640 are connected to the circuits of the mobile device 610. The conductive wires 632 are thus electrically connected to the circuits of the mobile device 610.

[0046] The device 600 preferably further comprises one or more magnets 430. When the device 600 is in place against the mobile device, the element interacts with a ferromagnetic element 432 of the mobile device, creating a force that holds the device 600 in place against the mobile device 610.

[0047] There figure 7 represents, in a very schematic manner, communication and power supply circuits included in the communication and power supply device, and in the mobile device of the figure 6 .

[0048] The device 600 comprises a 300A circuit of the type of circuit 300 of the figure 3 . The mobile device 610 comprises a circuit 300B of the type of circuit 300 of the figure 3 .

[0049] The operation of circuits 300A and 300B is similar to that of circuits 300A and 300B described in connection with the figure 5 . Data 110A and 120A come for example from a device of the type of device 450 described in relation to the figure 4 , connected, preferably connected, to the cable 620. The data 110A and 120A are carried by the cable 630 and arrive at the inputs 115 and 125 of the circuit 300A. The data 110A and 120A are transmitted, in the manner explained above, to the outputs 115 and 125 of the circuit 300B. The data are received by circuits of the mobile device 610, for example by a microprocessor. Similarly, data 110B and 120B coming from the mobile device arrive at the outputs 115 and 125 of the circuit 300A, and are for example carried by the cable 630 to the device 450.

[0050] In parallel with the data transmission, because the contact areas 640 are connected to the wires 632 by the spring terminals 622, the device 450 can apply to the areas 640 a VBUS voltage, for example referenced to the ground GNDA. The voltage is applied according to the power supply configuration data 120A and 120B exchanged between the device 450 and the mobile device 610. This voltage can be used by circuits of the mobile device (not shown) to charge an energy reserve. The described embodiments are compatible with the usual mobile device energy reserves and the usual charging circuits.

[0051] As for the support 410 and the mobile device 400 described in connection with the figures 4 et 5 , we thus obtain, without a USB type connector, the exchange of data between the device 600 and the mobile device 610 and, simultaneously, the recharging of the mobile device by a voltage configured according to the electrical configuration data 120A and 120B.

[0052] There figure 8 schematically represents an embodiment of a data communication circuit 800.

[0053] Circuit 800 includes a circuit 100 of the type of that of the figure 1 . Thus, the circuit 100 is configured to receive power supply configuration data 120 and data 110, and to provide data 130 (TX) comprising the data 110 and 120 serially.

[0054] The data 110 comprises data of type USB 3.0 or higher. In the example shown, the data 110 further comprises serial data of type USB 2, i.e. data with a data rate of up to 480 Mb / s.

[0055] The circuit 100 further comprises an input 815 for video data 810. Preferably, the video data 810 corresponds to the standard known as "DisplayPort" (DP). In the case of video data meeting this standard, the circuit 100 further comprises, preferably, an input 825 for serial data 820. The data 820 corresponds to an auxiliary channel (DP-AUX) of data transmitted in parallel with the video signal 810. The auxiliary channel makes it possible to communicate information related to the video information, and optionally audio, carried by the video data 810. The video data 810 and auxiliary data 820 are not described in detail, the embodiments being compatible with the usual video and auxiliary signals, in particular the signals in the "DisplayPort" standard.

[0056] In operation, circuit 100 receives data 110, power supply configuration data 120, video data 810, and, optionally, data 820. Data 130 provided by circuit 100 includes data 810 and 820, in series with data 110 and 120.

[0057] Preferably, the circuit 800 further comprises a circuit 830 (USB-CTRL) of which an output 832 is connected to the input 115 of the circuit 100. The circuit 830 has two inputs 834 and 836 provided to receive respectively data of type USB 3.0 or higher (USB 3), and of type USB 2. The circuit 830 receives the USB 2 and USB 3 data and provides on the output 832 the USB 2 and USB 3 data, for example in series (USB2 + USB3). Thus, the circuit 800 receives the USB 2 data, USB 3 data, the power supply configuration data 120, the video data 810 and, optionally, the data 820. The data 130 provided by the circuit 800 includes, in series, the USB 2 data, the USB 3 data, the power supply configuration data 120, the video data 810 and the data 820.

[0058] There figure 9 schematically represents an embodiment of a data communication circuit 900.

[0059] Circuit 900 includes a circuit 200 of the type of that of the figure 2 . Thus, the circuit 200 comprises a data input 130 (RX). In operation, this data is for example received by an antenna of a reception circuit external to the circuit 900. The circuit 200 provides in parallel, on its outputs 215 and 225, respective data 110 and 120. The data 110 and 120 are extracted from the data 130. The data 120 are power supply configuration data. The data 110 are preferably of the type of data 110 of the figure 8 , that is, including serial data of type USB 2, and type USB 3.0 or higher.

[0060] The circuit 200 further includes outputs 915 and 925. In operation, the circuit 200 extracts data 810 and 820 in addition to data 110 and 120, from the serial data 130. The data 810 and 820 are the same or similar to those described in connection with the figure 8 . In particular, the data 810 is video data, preferably in the "DisplayPort" standard. The data 820 corresponds to the auxiliary data channel of the "DisplayPort" standard.

[0061] Preferably, the output 215 of the circuit 200 is connected to an input 932 of a circuit 930 (USB-CTRL). The circuit 930 receives the data 110 and provides in parallel, on respective outputs 934 and 936, the USB 2 and USB 3 data. Thus, the circuit 900 receives, in series, the USB 2 data, the USB 3 data, the power supply configuration data 120, the video data 810 and the data 820. The circuit 900 provides on its respective outputs the USB 2 data, USB 3 data, the power supply configuration data 120, the video data 810 and the data 820.

[0062] The 800 circuit of the figure 8 can replace circuit 100 in embodiments of figures 3 à 7 . Similarly, the 900 circuit of the figure 9 may replace circuit 200 in these embodiments.

[0063] In particular, in a preferred embodiment, in each of the circuits 300A and 300B of the support 410 and of the mobile device 400, figures 4 et 5 , circuits 100 and 200 by circuits 800 and 900 respectively. The USB 2, USB 3, 810 (DP), 820 (DP-AUX), 120 (PD) data arriving at circuit 800, and the USB 3, USB 2, 810 (DP), 820 (DP-AUX), 120 (PD) data coming from circuit 900, are carried by cable 440. As mentioned, cable 440 also carries the VBUS supply voltage referenced to ground (GND). Cable 440 is then preferably a cable corresponding to the USB-C standard. Thus, support 410 constitutes a mobile device support allowing communication with the mobile device and powering the mobile device, according to the USB-C standard, without the mobile device being equipped with a USB-C type connector. This avoids the reliability issues of the USB-C connector mentioned above, and allows the thickness of the mobile device to be reduced.

[0064] Similarly, in another preferred embodiment, in each of the circuits 300A and 300B of the device 600 and the mobile device 610, figures 6 et 7 , circuits 100 and 200 by circuits 800 and 900 respectively. Cable 630 is then preferably a cable corresponding to the USB-C standard. Thus, device 600 allows communication with the mobile device and power supply of the mobile device according to the USB-C standard, without the mobile device being equipped with a USB-C type connector.

[0065] There figure 10 represents, schematically but in more detail, the 800 circuit of the figure 8 , connected to a data processing unit 1010 (CPU). The data processing unit 1010 may be constituted by a microprocessor 510 ( figure 5 ) of a mobile device, or by a microprocessor of the device 450 ( figure 4 ).

[0066] Inputs 115, 815, 825 and 125 of circuit 800 are connected to unit 1010. Circuit 830 ( figure 8 ), optional, is not shown here. Input 115 is connected to the input of a synchronization circuit (SYNC) 1020. In the case where the data 110 (USB2 + USB3) are in series, the connection between input 115 and circuit 1020 may comprise a deserializer 1022. Alternatively, the USB 2 and USB 3 data at the output of circuit 1022 are not in series, and deserializer 1022 may be omitted, input 115 then preferably being connected to circuit 1020. The output of synchronization circuit 1020 is connected, preferably connected, to the input of a circuit 1025 (MARK). The output of circuit 1025 is connected, preferably connected, to the input of a FIFO ("first in first out") stack 1028. The inputs 815 and 825 are each connected, preferably connected, to the input of a deserializer circuit 1030. The deserialized outputs of the deserializers 1030 are each connected, preferably connected, to an input of a synchronization circuit 1035.The output of the synchronization circuit 1035 is connected, preferably connected, to the input of a FIFO stack 1038. The input 125 is connected, preferably connected, to the input of a deserializer circuit 1040. The output of the deserializer circuit 1040 is connected, preferably connected, to a synchronization circuit 1045. The output of the synchronization circuit 1045 is connected, preferably connected, to the input of a FIFO stack 1048. The outputs of the FIFO stacks 1028, 1038 and 1048 are connected, preferably connected, to inputs of a multiplexer 1050. The output of the multiplexer 1050 is connected, preferably connected, to the input of a serializer circuit 1060. The output 1060 of the serializer circuit 1060 constitutes, or is connected to, the output 135 of circuit 100.

[0067] In operation, data 110, 120, 810 and 820 ( figure 8 ) entering the circuit 800 are synchronized and then stored in the FIFO stacks. The data is unstored from the FIFO stacks by the multiplexer circuit 1050 in a predefined data serialization order. The data extracted from the FIFO stacks is serialized by the circuit 1060 and provided on the output 135. The circuit 1025 makes it possible to insert, among the data 110, marks defining the start of a serial data frame. Alternatively, the circuit 1025 can be located between the circuit 1035 and the circuit 1038.

[0068] Preferably, at least one of the FIFO stacks 1028, 1038 and 1048, for example the stack 1028, comprises an output 1040 connected to the unit 1010. When the filling level of the stack 1028 exceeds a given threshold, a signal is emitted on the output 1040. The unit 1010 interprets this signal as a request to slow down the data rate entering the circuit 800. This makes it possible to adjust the data rate entering the circuit 800 according to a maximum rate, for example a maximum transmission rate by a circuit such as the circuit 310 described in relation to the figure 3 .

[0069] There figure 11 represents, schematically but in more detail, the 900 circuit of the figure 9 .

[0070] The input 235 of the circuit 900 is connected, preferably connected, to the input of a deserializer circuit 1110. The output of the deserializer 1110 is connected, preferably connected, to the input of a demultiplexer circuit 1120. The demultiplexer comprises four outputs 1125. Each of the outputs 1125 is connected, preferably connected, to one of the outputs 125, 915, 925, and 225 of the circuit 900, successively via a FIFO stack 1130, a data aligner circuit (SKEW) 1140, and a serializer circuit 1150.

[0071] In operation, the demultiplexer circuit 1120 detects the order of the data, for example by using marks such as those provided by the circuit 1025 ( figure 10 ). Circuit 1125 then distributes the data into FIFO stacks 1130. The data is then supplied, in series, to outputs 215, 915, 925 and 225. Alternatively, the USB 2 and USB 3 data are not in series, and are for example supplied to a circuit of the type of circuit 930 of the figure 9 . The circuit of the figure 9 provides USB 3 and USB 2 data on two separate outputs.

[0072] Various embodiments and variations have been described. Those skilled in the art will understand that certain features of these various embodiments and variations could be combined, and other variations will occur to those skilled in the art.

[0073] Finally, the practical implementation of the embodiments and variants described is within the reach of those skilled in the art from the functional indications given above.

Claims

1. A method comprising : - receiving in parallel, by a first data communication circuit (100), first electric power delivery configuration data (120A) and second data (110A, 810, 820), the first circuit (100) forming part of a device (300) comprising a second data communication circuit (200), and a wireless transmission / reception circuit (310); - supplying in series, by the first circuit (100), the first and second data; and - wirelessly transmitting, by the wireless transmission / reception circuit (310), the first and second data in series; - wirelessly receiving, by the wireless transmission / reception circuit (310), third electric power delivery configuration data (120B) and fourth data (110B, 810, 820) in series; and - supplying in parallel the third and fourth data by the second circuit (200).

2. The method according to claim 1, wherein the second and fourth data (110, 110A, 110B) comprise USB data of type 3.0 or higher.

3. The method according to claim 1 or 2, wherein the second and fourth data (810, 820) comprise video data.

4. The method according to any one of claims 1 to 3, wherein a transmission frequency of the first and second data (130) in series is greater than or equal to 60 GHz and / or a reception frequency of the third and fourth data (130) in series is greater than or equal to 60 GHz.

5. An electronic circuit (100, 200, 300, 800, 900) configured to implement the method according to any one of claims 1 to 4.

6. A device (410, 600) for wireless communication with a mobile device (400, 610), comprising the circuit according to claim 5.

7. The device (410, 600) according to claim 6, comprising a first USB-C type cable (440, 630) adapted to convey in parallel the first (120B) and second (110B, 810, 820) data and / or the third (120A) and fourth (110A) data.

8. The device (410) according to claim 6 or 7, comprising an inductance (460A) for wireless power supply of the mobile device.

9. The device (600) according to any of claims 6 to 8, comprising spring contact terminals (622).

10. The device according to any one of claims 6 to 9, comprising one or more magnets (430).

11. A mobile device (400, 610), comprising the circuit according to claim 5.

12. The device (410) according to claim 11, comprising a wireless power supply reception inductance.

13. The device (600) according to claim 11 or 12, comprising power supply contact zones.