Abstract: A method and an arrangement are disclosed for synchronizing on-screen display functions during analog signal reception in a terminal arrangement that is capable of receiving both digital and analog video signals. There are provided means (312, 313) for generating on-screen display objects. Coupled to said means for generating on-screen display objects, there are synchronization pulse generation means (314) for controlling the generation of on-screen display objects. Comparison means (322) are used for comparing synchronization pulses generated by said synchronization pulse generation means (314) with a synchronization signal obtained (320) from an analog video signal. The result of said comparing as a controlling signal is conveyed (323, 324) to a process (314, 325) of generating said synchronization pulses.

Abstract: The object of the invention is a method for reserving transmission capacity required by the acknowledgement and/or response messages (33) in a bi-directional transmission system, where a message (16) is transmitted from a first unit (12) to a second unit (13), the second unit (13) receives the message (16) transmitted by the first unit (12), and the second unit (13) transmits an acknowledgement and/or response message (33) as a response to the received message (16) so that the reservation of the transmission capacity required by the acknowledgement and/or response message (33) is made substantially in connection with the transmission of the message (16) transmitted from the first unit (12) to the second unit (13).

Abstract: A method and a device are provided for acquiring synchronization to a received digital signal. The signal consists of consecutive frames with a frame synchronization pattern distributed over a significant part of a frame. A number of blocks of constant length (303) are received (302) and a passage is selected (304) from the same location within each received block. A regularly occurring bit value is observed (305, 306) at a constant bit position within the selected passages. As a response to an observed regularly occurring bit value, the corresponding position in the received digital signal is used (308, 309) as a starting point, and the rest of the distributed frame synchronization pattern is located within the received digital signal.

Abstract: A method is presented for preventing the unauthorized use of a certain protected interface (102) in a processor (101. 101′). An indication (NO PAT, ALARM) of attempted use of the protected interface is generated, and as a response to said indication, at least a major part of the operation of the processor is disabled (DISABLE).

Abstract: An arrangement for transferring information between the secondary and primary circuit of a transformer wherein control information is transferred to the primary circuit of a power transformer by means of auxiliary windings in the same transformer. The auxiliary windings are arranged in pairs in the transformer core branches in such a manner that the magnetic fluxes (&PHgr;c) do not induce a voltage in the energy-transferring windings (pw1, pw2), and the voltages induced in the auxiliary windings by the magnetic flux (&PHgr;p) corresponding to the energy transfer are opposite both in the primary-side winding pair (cw1a, cw1b) and in the secondary-side winding pair (cw2a, cw2b). Thus the transfer of a control signal and the transfer of energy will not disturb one another. The transformer may be implemented as a planar structure on a printed circuit board.

Abstract: A method and an arrangement are disclosed for synchronizing on-screen display functions during analog signal reception in a terminal arrangement that is capable of receiving both digital and analog video signals. There are provided means (312, 313) for generating on-screen display objects. Coupled to said means for generating on-screen display objects, there are synchronization pulse generation means (314) for controlling the generation of on-screen display objects. Comparison means (322) are used for comparing synchronization pulses generated by said synchronization pulse generation means (314) with a synchronization signal obtained (320) from an analog video signal. The result of said comparing as a controlling signal is conveyed (323, 324) to a process (314, 325) of generating said synchronization pulses.

Abstract: An antenna arrangement is provided for use in a vehicle. It comprised an antenna element (601-606, 701a-704f, 901-907, 1203) and means (600, 801, 802, 803, 804, 900, 910, 1200, 1201, 1202) for moving the antenna element in relation to the vehicle. The means for moving the antenna element are arranged to move the antenna element in relation to the vehicle into a direction which is opposite to a direction of movement of the vehicle.

Abstract: A method and a device are provided for triggering an uplink transmission in a cable modem. A number of time indicators (301) is received in a downlink direction. There is established knowledge about a total time offset related to propagation delays in a network from which the time indicators are received. There is also established knowledge about an allocated uplink transmission slot number determined in relation to the received time indicators. The total time offset is reduced into a remainder value that is smaller than the total time offset. A shifted slot counter (304, 405) is synchronized to a shifted time base (302, 303) which has an offset to the time base provided by the received time indicators (301), said offset being equal to said remainder value. An uplink transmission triggering signal is generated as a response to said shifted slot counter (405) giving a certain slot number.