1. A dual-mode mobile terminal, comprising:
a China mobile multimedia broadcasting (CMMB) antenna embedded in the dual-mode mobile terminal;
a CMMB protection network connected to the CMMB antenna, wherein the CMMB protection network comprises: multiple stages of circuits connected successively, wherein each stage of circuit in the multiple stages of circuits is an LC series circuit or an LC parallel circuit, two ends of the LC parallel circuit are connected between the stages of circuits before and after the LC parallel circuit, and one end of the LC series circuit is connected between the stages of circuits before and after the LC series circuit, and the other end of the LC series circuit is grounded.
2. The dual-mode mobile terminal according to claim 1, further comprising:
an antenna matching network connected between the CMMB antenna and the CMMB protection network, wherein the antenna matching network comprises one of the following matching circuits: a T-shaped LC circuit, an L-shaped LC circuit, a \u03a0-shaped LC circuit, a T-shaped RC circuit, an L-shaped RC circuit, and a \u03a0-shaped RC circuit.
3. The dual-mode mobile terminal according to claim 2, wherein the antenna matching network further comprises:
a transient voltage suppression (TVS) diode, with the negative electrode thereof being connected to the matching circuit and the positive electrode thereof being grounded.
4. The dual-mode mobile terminal according to claim 1, further comprising:
a low-noise amplifier (LNA) circuit connected to the CMMB protection network.
5. The dual-mode mobile terminal according to claim 4, further comprising:
an LNA matching attenuation network connected to the LNA circuit, wherein the LNA matching attenuation network comprises an L-shaped LC circuit and a \u03a0-shaped resistance attenuator which are connected in series.
6. The dual-mode mobile terminal according to claim 5, wherein the attenuation value of the \u03a0-shaped resistance attenuator is greater than or equal to 2 dB.
7. The dual-mode mobile terminal according to claim 4, further comprising:
a control network connected to the LNA circuit and configured to provide an operating voltage and a bias voltage of LNA for the LNA circuit.
8. The dual-mode mobile terminal according to claim 7, wherein the control network comprises a baseband processing chip.
9. The dual-mode mobile terminal according to claim 1, wherein the CMMB antenna comprises: a windingly wiring antenna body and an antenna support.
10. The dual-mode mobile terminal according to claim 1, wherein the distance between the CMMB antenna and a dual-mode antenna of the dual-mode mobile terminal is greater than a predetermined threshold.
11. The dual-mode mobile terminal according to any-ene-o claim 1, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
12. The dual-mode mobile terminal according to claim 2, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
13. The dual-mode mobile terminal according to claim 3, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
14. The dual-mode mobile terminal according to claim 4, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
15. The dual-mode mobile terminal according to claim 5, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
16. The dual-mode mobile terminal according to claim 6, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
17. The dual-mode mobile terminal according to claim 7, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
18. The dual-mode mobile terminal according to claim 8, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
19. The dual-mode mobile terminal according to claim 9, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
20. The dual-mode mobile terminal according to claim 10, wherein the dual-mode mobile terminal is a time division-synchronized code division multiple access (TD-SCDMA) and global system for mobile communication (GSM) mobile terminal, the multiple stages of circuits are four stages of circuits, wherein the four stages of circuits comprise: two stages of LC parallel circuits and two stages of LC series circuits, wherein the two stages of LC parallel circuits resonate at DSC 1800 transmitting and TD transmitting bands, and the two stages of LC series circuits resonate at GSM transmitting band respectively.
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 method of generating an enhanced audio stream comprising:
(a) receiving live audio accompanying a live video broadcast;
(b) buffering the live audio in a buffer;
(c) inserting into the enhanced audio stream at least a portion of the live audio;
(d) inserting into the enhanced audio stream at least one visual description of the video broadcast while simultaneously displaying an instantaneously updated visual buffer size display, wherein the visual buffer size display is calibrated to a pre-set maximum buffer size, and wherein the visual buffer size display shows the pre-set maximum buffer size and the current buffer size in a visual manner; and
(e) inserting into the enhanced audio stream, live audio from the buffer, wherein the live audio is compressed in time.
2. The method of claim 1, wherein the live video broadcast relates to a public emergency situation.
3. The method of claim 1, wherein the pre-set maximum buffer size is set to 60 seconds.
4. The method of claim 1, wherein the current buffer size is visually displayed through a numeric display.
5. The method of claim 1, wherein the current buffer size is visually displayed through an indicator on at least a circular, horizontal, and vertical graph.
6. The method of claim 1, wherein a warning is displayed when the current buffer size is greater that the pre-set maximum buffer size.
7. The method of claim 1, wherein the live audio is further compressed in time when the current buffer size if greater than the pre-set maximum buffer size.
8. The method of claim 1, further comprising:
(f) transmitting the enhanced audio stream to a radio receiver, wherein the transmission is synchronized with the live video broadcast.
9. The method of claim 1, further comprising providing the enhanced audio stream along with the live video broadcast.
10. The method of claim 7, wherein the radio receiver is a digital radio receiver.
11. A system for generating an enhanced audio stream comprising:
an audio input for receiving live audio accompanying a live video broadcast;
a memory buffer for storing the live audio;
a microprocessor executing instructions for inserting into a memory location storing an enhanced audio stream, at least a portion of the live audio, and instructions for inserting into the memory location storing an enhanced audio stream at least one visual description of the video broadcast;
an output display showing an instantaneously updated visual buffer size display, wherein the visual buffer size display is calibrated to a pre-set maximum buffer size, and wherein the visual buffer display shows the pre-set maximum buffer size and the current buffer size in a visual manner; and
the microprocessor executing instructions for storing at the memory location of the enhanced audio stream, live audio from the buffer, wherein the live audio is compressed in time.
12. The system of claim 11, wherein the current buffer size is visually displayed through a numeric display.
13. The system of claim 11, wherein the current buffer size is visually displayed through an indicator on at least on a circular, horizontal, and vertical graph.
14. The system of claim 11, wherein a warning is shown on an output display if the current buffer size is greater that the pre-set maximum buffer size.
15. The system of claim 11, further comprising: an output communication link for transmitting at least a portion of the memory location storing the enhanced audio stream to a radio receiver, wherein the transmission is synchronized with the live video broadcast.
16. The system of claim 13, wherein the radio receiver is a digital radio receiver.
17. The system of claim 11, wherein the live audio is further compressed in time when the current buffer size if greater than the pre-set maximum buffer size.
18. The system of claim 11, further comprising providing the enhanced audio stream along with the live video broadcast.