Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 11, 1998
Issued Date -
N/A
app pub date -
Jan 19, 1996
filing date -
Aug 25, 1995
priority date (Note) -
In Force
status (Latency Note)
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
Next PAIR Update Scheduled on [ ] |
Importance
US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A method and apparatus for carrying out synchronous co-division multiple access (SCDMA,) communication of multiple channels of digital data over a shared transmission media such as a cable television system coaxial cable, a fiber optic or copper conductor telephone link, terrestial microwave, satellite link, local or wide area network, wireless including cellur network or some combination of these media using suitable interface circuitry. The system includes modems at remote units and a central unit to receive time division multiplexed digital data arranged into timeslots or channels and uses orthogonal codes to encode each channel of multiple data and spread the energy of each channel data over a frame of data transmitted in the code domain. Spreading the data this way makes the system less susceptible to impulse noise. Frames are synchronized as between remote and central units using a ranging scheme which is also useful in any other system transmitting data by frames in a distributed system where synchronizing the frames as between all units regardless of differences in propagation delays is necessary. Each frame in the SCDMA modulation scheme includes a gap or guardband containing no other data. The ranging process involves training each remote unit to impose enough delay prior to re-transmission of a barker code received from the CU such that a barker code sent by the RU arrives at the CU during the gap. The process of setting the delay in each RU is a trial and error process, and each RU starts the ranging process asynchronously. Contention resolution protocols such that only one RU is aligning to the gap at any particular time are taught.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GOOGLE TECHNOLOGY HOLDINGS LLC;SILICON VALLEY BANK COMMERCIAL FINANCE DIVISION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Azenkot, Yehuda | Cupertino, CA | 64 | 3949 |
Rakib, Selim Shlomo | Cupertino, CA | 74 | 10674 |
Cited Art Landscape
- No Cited Art to Display
Patent Citation Ranking
Forward Cite Landscape
- No Forward Cites to Display
Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text
Legal Events
Matter Detail
Update Public Data Dismiss Edit SaveRenewals Detail
Edit SaveNote
The template below is formatted to ensure compatibility with our system.
Provide tags with | separated like (tags1|tags2).
Maximum length is 128 characters for Customer Application No
Mandatory Fields * - 'MatterType','AppType','Country','Title','SerialNo'.
Acceptable Date Format - 'MM/DD/YYYY'.
Acceptable Filing/App Types -
- Continuation/Divisional
- Original
- Paris Convention
- PCT National
- With Priority
- EP Validation
- Provisional Conversion
- Reissue
- Provisional
- Foreign Extension
Acceptable Status -
- Pending
- Abandoned
- Unfiled
- Expired
- Granted
Acceptable Matter Types -
- Patent
- Utility Model
- Supplemental Protection Certificate
- Design
- Inventor Certificate
- Plant
- Statutory Invention Reg
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Success
E-mail has been sent successfully.
Failure
Some error occured while sending email. Please check e-mail and try again!
PAIR load has been initiated
A preliminary load of cached data will be loaded soon. Current PAIR data will be loaded within twenty four hours.
File History PDF
Thank you for your purchase! The File Wrapper for Patent Number 5793759 will be available within the next 24 hours.
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully
Important Notes on Latency of Status data
Please note there is up to 60 days of latency in this Status indicator for certain status conditions. You can obtain up-to-date Status indicator readings by ordering PAIR for the file.
An application with the status "Published" (which means it is pending) may be recently abandoned, but not yet updated to reflect its abandoned status. However, an application filed less than one year ago is unlikely to be abandoned.
A patent with the status "Granted" may be recently expired, but not yet updated to reflect its expired status. However, it is highly unlikely a patent less than 3.5 years old would be expired.
An application with the status "Abandoned" is almost always current, but there is a small chance it was recently revived and the status not yet updated.
Important Note on Priority Date data
This priority date is an estimated earliest priority date and is purely an estimation. This date should not be taken as legal conclusion. No representations are made as to the accuracy of the date listed. Please consult a legal professional before relying on this date.
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.