1. A procedure for wireless transmission between a wheel module (9) arranged in a tire (2) and a control device (3; 28) arranged outside the tire (2), the method comprising:
transferring a first transmission signal (S1) from an antenna (6) of the control device (3; 28) to an antenna (11) of the wheel module (9);
transmitting data via a second transmission signal (S2) from the wheel module (9) to the control device (3; 28), wherein a different frequency is provided for the first transmission signal (S1) than for the second transmission signal (S2);
receiving by the antenna (11) of the wheel module the first transmission signal (S1), during a coupling period (TK) within which when the tires (2) are rotating, an also rotating sphere of influence (15) of the antenna (11) of the wheel module (9) and a stationary sphere of influence (14) of the antenna (6) of the control device (3; 28) partially overlap; and
recognizing a beginning of the coupling period (TK) is recognised by the wheel module (9), wherein the transmission of data from the wheel module (9) to the control device (3; 28) is started after the coupling period (TK) begins, wherein a speed of the tire (2) or a size which is proportional to it is recorded and compared with a speed threshold value, and the second transmission signal (S2) can be transmitted with an extended data telegram in particular only when the speed threshold value is not reached.
2. A procedure according to claim 1, wherein the frequency (1) of the first transmission signal (S1) is lower than the frequency of the second transmission signal (S2).
3. A procedure according to claim 1, wherein power is gained from the first transmission signal in order to supply the wheel module (9).
4. A procedure according to claim 3, wherein with the power gained, a power storage unit (22) is charged and the data transmission from the wheel module (9) to the control device (3; 28) is started after a prespecified charging condition (LMAX) of the power storage unit (22) has been started.
5. A procedure according to claim 4, wherein the second transmission signal (S2) is transmitted with an extended data telegram when the power storage unit (22), assuming that a significant discharge has occurred, has achieved the prespecified charging condition (LMAX).
6. A procedure according to claim 5, wherein the second transmission signal (S2) is transmitted with a standard data telegram when a charging condition (L) of the power storage unit has not fallen below a prespecified charging condition threshold value (LMIN) since the previous data transmission from the wheel module (9) to the control device (3; 28).
7. A procedure according to claim 1, wherein the first transmission signal (S1) is transmitted from the control device (3; 28) at least partially overriding several coupling periods (TK).
8. A procedure according to claim 1, wherein data from the control device (3; 28) to the wheel module (9) is transmitted by means of the control device (3; 28);
after an at least partial reception of the second transmission signal (S2) in the first transmission signal (S1), a prespecified interruption is executed, or a prespecified zero sequence is transmitted;
the first transmission signal (S1) is then loaded with the data to be transmitted from the control device (3; 28) to the wheel module (9) and in the wheel module (9);
the interruption or zero sequence is recognised in the first transmission signal (S1); and
the first transmission signal (S1) is received with the data from the control device (3; 28).
9. A procedure according to claim 1, wherein the first and the second transmission signal (S1, S2) is transmitted or received using a ground antenna (29) of the control device (28) arranged in a road surface (30).
10. A procedure for wireless transmission between a wheel module (9) arranged in a tire (2) and a control device (3; 28) arranged outside the tire (2), the method comprising:
transferring a first transmission signal (S1) from an antenna (6) of the control device (3; 28) to an antenna (11) of the wheel module (9);
transmitting data via a second transmission signal (S2) from the wheel module (9) to the control device (3; 28), wherein a different frequency is provided for the first transmission signal (S1) than for the second transmission signal (S2);
receiving by the antenna (11) of the wheel module the first transmission signal (S1), during a coupling period (TK) within which when the tires (2) are rotating, an also rotating sphere of influence (15) of the antenna (11) of the wheel module (9) and a stationary sphere of influence (14) of the antenna (6) of the control device (3; 28) partially overlap; and
recognizing a beginning of the coupling period (TK) is recognised by the wheel module (9), wherein the transmission of data from the wheel module (9) to the control device (3; 28) is started after the coupling period (TK) begins, wherein a current measured value of at least one tire condition sensor (24, 25, 26) which is arranged in the tire (2) is transmitted using standard data telegrams which are included in the second transmission signal (S2) from the wheel module (9) to the control device (3; 28).
11. A procedure for wireless transmission between a wheel module (9) arranged in a tire (2) and a control device (3; 28) arranged outside the tire (2), the method comprising:
transferring a first transmission signal (S1) from an antenna (6) of the control device (3; 28) to an antenna (11) of the wheel module (9);
transmitting data via a second transmission signal (S2) from the wheel module (9) to the control device (3; 28), wherein a different frequency is provided for the first transmission signal (S1) than for the second transmission signal (S2);
receiving by the antenna (11) of the wheel module the first transmission signal (S1), during a coupling period (TK) within which when the tires (2) are rotating, an also rotating sphere of influence (15) of the antenna (11) of the wheel module (9) and a stationary sphere of influence (14) of the antenna (6) of the control device (3; 28) partially overlap; and
recognizing a beginning of the coupling period (TK) is recognised by the wheel module (9), wherein the transmission of data from the wheel module (9) to the control device (3; 28) is started after the coupling period (TK) begins, wherein a current measured value of at least one tire condition sensor (24, 25, 28) arranged in the tire (2) together with a set value for this measured value or with a characteristic identification of the tires (2) is transmitted using extended data telegrams included in the second transmission signal (S2) from the wheel module (9) to the control device (3; 28).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A three-dimensional (3-D) memory, comprising:
a plurality of memory dies, each having at least one memory bank and a built-in self-test (BIST) circuit; and
a plurality of channels, for electrically connecting the memory dies;
wherein, in a synchronous test, one of the memory dies is selected as a master die, the BIST circuit on the master die sends an enable signal to the memory dies under test via the channels, and the BIST circuits of the memory dies test the memory banks on one same memory die or on different memory dies.
2. The 3-D memory according to claim 1, wherein when testing the memory banks on the master die, the BIST circuit on the master die tests one of the memory banks on the master die, and the BIST circuit of at least one other memory die tests another of the memory banks on the master die.
3. The 3-D memory according to claim 1, wherein when testing one of the memory banks on the master die and one of the memory banks on another memory die, the BIST circuit on the master die tests the memory bank under test on the master die, and the BIST circuit on the another memory die tests the memory bank under test on the another memory die.
4. The 3-D memory according to claim 1, wherein when testing one of the memory banks on the master die and one of the memory banks on another memory die, the BIST circuit on the master die tests the memory bank under test on the another memory die, and the BIST circuit on the another memory die tests the memory bank under test on the master die.
5. The 3-D memory according to claim 1, wherein when testing the memory banks on another memory die, the BIST circuit on the master die tests one of the memory banks under test on the other memory dies, and the BIST circuit on another memory die tests another of the memory banks on another memory die.
6. A built-in self-test (BIST) circuit of a 3-D memory, comprising:
an inter-die synchronization module, for receiving an external test command to determine whether the BIST circuit operates in a master mode or in a slave mode; and
a test pattern generator, coupled to the inter-die synchronization module, for generating a test pattern;
wherein, when the BIST circuit operates in the master mode, the BIST circuit sends an enable signal of the external test command to the BIST circuits in the slave mode of the 3-D memory, so that the BIST circuits of the 3-D memory perform a synchronous test; and
when the BIST circuit operates in the slave mode, the BIST circuit receives the enable signal sent from the BIST circuit in the master mode, so that the BIST circuits of the 3-D memory perform the synchronous test.
7. The BIST circuit according to claim 6, wherein the inter-die synchronization module comprises:
a register, for temporarily storing the enable signal;
a tri-state buffer, coupled to the register, controlled by a tri-state buffer enable signal to output the enable signal temporarily stored in the register or to be in a high-impedance state; and
a multiplexer, coupled to the tri-state buffer and the test pattern generator, for outputting a ground signal, an output signal of the tri-state buffer or the enable signal outputted by another BIST circuit.
8. The BIST circuit according to claim 7, wherein
the tri-state buffer outputs the enable signal temporarily stored in the register when the BIST circuit operates in the master mode, and
the tri-state buffer is in the high-impedance state when the BIST circuit operates in the slave mode.
9. The BIST circuit according to claim 6, wherein the test pattern generator comprises a clock-domain-crossing-aware finite state machine (CDC-aware FSM) coupled to the inter-die synchronization module, and the CDC-aware FSM has an idle state, an execution state, a done state and a wait state.
10. The BIST circuit according to claim 9, wherein:
when the enable signal is enabled, the CDC-aware FSM enters the execution state from the idle state to execute a test task;
when the test task is completed, the CDC-aware FSM enters the done state from the execution state, and reports a test result to inform that the test task is completed;
when the enable signal is still enabled, the CDC-aware FSM enters the wait state from the done state; and
in response to the enable signal changing from enabled to disabled, the CDC-aware FSM returns to the idle state from the wait state.
11. The BIST circuit according to claim 6, further comprising at least one comparator, and a number of the comparator is associated with a number of memory banks on a same die as the BIST circuit.