Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 4709377 | Viterbi decoder for wireline modems A Viterbi decoder is disclosed particularly suited for implementation in a microprocessor-based modem. The decoder calculates the branch metric corresponding to each point of a signal constellation by calculating the Euclidean distance between a received ... | 11/24/1987 |
| 4677626 | Self-synchronizing interleaver for trellis encoder used in wireline modems In the transmitter of a data communication system using QAM, a trellis coder with k-baud delay units is used for forward error correction. The output of the encoder is modulated using QAM to generate sequential baud signal elements. The redundant data bit... | 06/30/1987 |
| 4677625 | Distributed trellis encoder In the transmitter of a data communication system using QAM, a plurality of trellis coders with delay units are used for forward error correction. The output of each encoder is modulated using QAM to generate sequential baud signal elements. The redundant... | 06/30/1987 |
| 4677624 | Self-synchronizing de-interleaver for viterbi decoder used in wireline modems In the transmitter of a data communication system using QAM, a plurality of trellis coders with delay units are used for forward error correction. The output of each encoder is modulated using QAM to generate sequential baud signal elements. The redundant... | 06/30/1987 |
| 4660214 | QANI Trellis-coded signal structure A signal structure for high speed Trellis coded data communications selects each signal point in the structure to attain a low probability of error in the presence of both additive noise and multiplicative noise. Viterbi decoding is modified to take accou... | 04/21/1987 |
| 4493082 | Soft decision convolutional code transmission systems A data transmission system in which data is transmitted in a form incorporating additional data providing for error correction at the receiver. The data is encoded in a transmitter using a signal mapping system which maps a number of original digits and a... | 01/08/1985 |
| 4015238 | Metric updater for maximum likelihood decoder In a convolutional code decoder, a current received input corresponds to a last data state of a received sequence. Path metrics, respective correlations of the received sequence to each of a limited number of possible sequences, are determined to choose t... | 03/29/1977 |
