Abstract
Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
3G | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | No | Family Member | ||||
Not Available | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | No | Family Member | ||||
4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
S1
S2
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No | Family Member | |||
4G | 12/03/2020 | ISLD-202003-022 | QUALCOMM INC | No | Family Member | ||||
5G | 31/05/2022 | ISLD-202205-072 | QUALCOMM INC | No | Family Member |
Specification Information
Specification Information
Technologies
Family Information
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All Pending Patents In Patent Family : | ---- |
Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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US2005175070A1 | 3G | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | Yes | Basis Patent | ||||
US2005175070A1 | Not Available | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | Yes | Basis Patent | ||||
US2005175070A1 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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US8363697B2 | 3G | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | Yes | Basis Patent | ||||
US8363697B2 | Not Available | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | Yes | Basis Patent | ||||
US8363697B2 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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US2011134823A1 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC | Yes | Basis Patent | ||||
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S1
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No | Family Member | |||
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US8737538B2 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC | Yes | Basis Patent | ||||
US8737538B2 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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US2011134824A1 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
S1
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Yes | Basis Patent | |||
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S1
S2
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Yes | Basis Patent | |||
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S1
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No | Family Member | |||
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No | Family Member | |||
US8582621B2 | 4G | 12/03/2020 | ISLD-202003-022 | QUALCOMM INC | Yes | Basis Patent | ||||
US8582621B2 | 5G | 31/05/2022 | ISLD-202205-072 | QUALCOMM INC | No | Family Member | ||||
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KR101129205B1 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
KR101129205B1 | 4G | 12/03/2020 | ISLD-202003-022 | QUALCOMM INC | No | Family Member | ||||
KR101129205B1 | 5G | 31/05/2022 | ISLD-202205-072 | QUALCOMM INC | No | Family Member | ||||
KR20110074596A | 3G | 02/03/2010 | ISLD-201004-005 | QUALCOMM INC | No | Family Member | ||||
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KR20110074596A | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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IL171796A | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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JP2007519343A | 4G | 12/03/2020 | ISLD-202003-022 | QUALCOMM INC | No | Family Member | ||||
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JP4777907B2 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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JP4777907B2 | 4G | 12/03/2020 | ISLD-202003-022 | QUALCOMM INC | No | Family Member | ||||
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CN102291362A | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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CN102291362B | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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CN102300162A | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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KR101118490B1 | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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TWI513204B | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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CN1788439A | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
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No | Family Member | |||
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CN1788439B | 4G | 29/01/2017 | ISLD-201703-174 | QUALCOMM INC |
S1
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No | Family Member | |||
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S1
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No | Family Member | |||
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No | Family Member | |||
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S1
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S1
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No | Family Member | |||
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S1
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No | Family Member | |||
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S1
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No | Family Member | |||
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S1
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No | Family Member | |||
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S1
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No | Family Member | |||
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S1
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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S1
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No | Family Member | |||
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies

Product
Use Cases

Services
Claim
1. CLAIMS1. A method for synchronized broadcast, comprising: receiving a first transmission slot; identifying a portion of the first transmission slot has comprising a synchronized broadcast content modulated using a first modulation format and a unicast portion modulated using a second modulation format, wherein the first and second modulation formats are different; demodulating the unicast portion; and demodulating the broadcast portion.
2. The method as in claim 1 , further comprising: selecting a first demodulator for unicast demodulation; and selecting a second demodulator for broadcast demodulation.
3. The method as in claim 1 or 2, wherein the second modulation format is a code division modulation format.
4. The method as in claim 1 , 2 or 3, wherein the first modulation format is an orthogonal frequency division modulation format.
5. The method as in any one of claims 1 to 4, wherein the first modulation format is a code division modulation format having a broadcast spreading code used by multiple transmitters.
6. The method as in any one of claims 1 to 5, wherein demodulating the broadcast portion further comprises: equalizing the broadcast portion.
7. The method as in any one of claim 1 to 6, wherein demodulating the broadcast portion further comprises: training an equalizer on a broadcast pilot.
8. The method as in any one of claim 1 to 7 for receiving a broadcast transmission in a spread-spectrum communication system, comprising: receiving approximately identical waveforms of broadcast transmission from multiple transmitters, whereby the approximately identical waveforms constitute an artificial multipath producing a frequency-selective composite channel response, processing the received waveforms by inverting or undoing the filtering effect of the composite channel response.
9. A computer program product executable for performance of a method of any one of claims 1 to 8
10. An apparatus for synchronized broadcast comprising a receiver, comprising: means for receiving a first transmission slot; means for identifying a portion of the first transmission slot has comprising the broadcast information modulated using a first modulation format and a unicast portion carrying the first information modulated using a second modulation format, wherein the first and second modulation formats are different; means for demodulating the unicast portion; and means for demodulating the broadcast portion
11. An apparatus according to claim 10, further comprising: means for selecting a first demodulator for unicast demodulation; and means for selecting a second demodulator for broadcast demodulation
12. The apparatus as in claim 10 or 1 1 , wherein the second modulation format is a code division modulation format
13. The apparatus as in any one of claims 10 to 12, wherein the first modulation format is an orthogonal frequency division modulation format
14. The apparatus as in any one of claims 10 to 13, wherein the first modulation format is a code division modulation format having a broadcast spreading code for use by multiple transmitters
15. The apparatus as in any one of claims 10 to 14, wherein means for demodulating the broadcast portion further comprises: means for equalizing the broadcast portion
16. The apparatus as in any one of claims 10 to 15, wherein means for demodulating the broadcast portion further comprises: means for training an equalizer on a broadcast pilot. 19. The apparatus as in any one of claims 10 to 16 for receiving a broadcast transmission in a spread-spectrum communication system, further comprising: means for receiving approximately identical waveforms of broadcast transmission from multiple transmitters, whereby the approximately identical waveforms constitute an artificial multipath producing a frequency-selective composite channel response, means for processing the received waveforms by inverting or undoing the filtering effect of the composite channel response. For the Applicant, Shaul Mizrahi, Ph.D. Sanford T. Colb & Co. C: 70921']
Associated Portfolios

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SUMMARY
ClaimChart-IL205515A-STO
Patent number:IL205515A
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.