Shankar NarayanSan Jose, CA

6868156, Mar 15, 2005

Mar 5, 1999

09/262986

Shankar S. Narayan - Palo Alto CA, US
Vijay K. Gupta - Cupertino CA, US

Cisco Technology, Inc. - San Jose CA

H04M003/00
H04M001/00

379386, 379379, 379380, 379381, 379382, 379383

A method of repeating a non-voice signal such as a dual tone, multiple frequency (DTMF) signal, by inserting a delay sequence of data values into an output data sequence of data values, a portion of the output data sequence following the delay sequence being the same as a corresponding portion of an input sequence of decoded data obtained from a low bit-rate speech decoder. The input sequence has at least one distorted non-voice sequence. The method provides for inserting a substantially undistorted non-voice sequence into the output sequence, the undistorted sequence being at least of substantially the same length as the distorted sequence, a portion of the output sequence following the undistorted sequence being the same as a corresponding portion of the input sequence, and the output sequence being substantially free of the distorted non-voice signal.

2002006, May 30, 2002

Oct 16, 2001

09/981189

Shankar Narayan - Sunnyvale CA, US

G06F009/44
G06F009/46

709/315000, 709/330000

Synchronized computing routes data and code to desired destinations of computers from various locations where the data and code is stored. Synchronized computing securely synchronizes the movement of data and code to perform desired computation. To support synchronized computing, a client generates proxy objects that, when executed, serve as gateways between local objects of the client and remote objects that may reside on servers connected to the client over a network. The client generates the proxy objects based on an (1) interface definition that may be downloaded over a network and (2) policy access data that may reside on the client. The proxy objects are generated so that they control access according to access rules defined by the policy access data.

2002007, Jun 20, 2002

Oct 16, 2001

09/978867

Shankar Narayan - Sunnyvale CA, US

G06F009/46
G06F009/00

709/316000, 709/330000

A model is provided for building powerful re-usable distributed components. The model is based on instantiable distributed objects (IDOs). IDOs are distributed objects that are instantiated in response to a request from a client to instantiate the IDOs. Typically, the request is transmitted by a client over a network to another computer. Once instantiated, an IDO may not only be addressed by the client that requested the instantiation, but by other clients, who may also interact with the IDO by issuing requests addressed to it. IDOs may be organized into hierarchies of objects that have a hierarchical relationship based on containment. Containment rules govern how a parent object in the hierarchy may contain child objects in the hierarchy. For example, an object may only be contained by the object that instantiated it. As a consequence, two child objects of a parent object interact with each other through their parent.

2002011, Aug 15, 2002

Oct 16, 2001

09/981340

Shankar Narayan - Sunnyvale CA, US

G06F007/00

707/001000

Approaches are described for improving the storage and retrieval of information. The approaches are based on a questioned based model where, in response to receiving data representing a question, information is retrieved that may answer those questions. Specifically, a question base server stores records, each record representing a question and a location of an information source for that question. The information source may be a file on a web server or a database that resides on a web server. Input representing a question is transmitted by a client to a web server. The web server transforms the input into a form that may be processed by the question base server. The question base server receives the transformed input and selects records that store information sources for the question. A list of selected records is transmitted back to the client.

2008004, Feb 21, 2008

Aug 15, 2006

11/504393

Shankar Narayan - Redwood City CA, US

G06F 1/16
H05K 5/00

361683, 361679, 345 7, 345169, 359630, 708139

A hands free wearable computer is provided. The hands free wearable computer includes an adjustable display tray, a split hands free two-hand foldable integrated input device that can be carried by gripping it, a video camera. The split hands free two-hand foldable integrated input device that can be carried can be used with the wearable computer as well as other non-wearable computer such as desktops, servers, laptops and entertainment devices such as game consoles, televisions. The hands free wearable computer with a hands free integrated input device is easy to wear and use while standing, sitting, laying down in a bed, walking, driving a car etc. while permitting a user's hands to become free to perform any other tasks that need to be attended to by the user's hands.

5490234, Feb 6, 1996

Jan 21, 1993

8/007621

Shankar Narayan - Palo Alto CA

Apple Computer, Inc. - Cupertino CA

G10L 500

395 269

A concatenator for a first digital frame with a second digital frame, such as the ending and beginning of adjacent diphone strings being concatenated to form speech is based on determining an optimum blend point for the first and second digital frames in response to the magnitudes of samples in the first and second digital frames. The frames are then blended to generate a digital sequence representing a concatenation of the first and second frames with reference to the optimum blend point. The system operates by first computing an extended frame in response to the first digital frame, and then finding a subset of the extended frame with matches the second digital frame using a minimum average magnitude difference function over the samples in the subset. The blend point is the first sample of the matching subset. To generate the concatenated waveform, the subset of the extended frame is combined with the second digital frame and concatenated with the beginning segments of the extended frame to produce the concatenate waveform.

5642466, Jun 24, 1997

Jan 21, 1993

8/007188

Shankar Narayan - Palo Alto CA

Apple Computer, Inc. - Cupertino CA

G10L 502
G10L 900

395 269

A software-only real time text-to-speech system includes intonation control which does not introduce discontinuities into output speech stream. The text-to-speech system includes a module for translating text to a sequence of sound segment codes and intonation control signals. A decoder is coupled to the translator to produce sets of digital frames of speech data, which represent sounds for the respective sound segment codes in the sequence. An intonation control system is responsive to intonation control signals for modifying a block of one or more frames in the sets of frames of speech data to generate a modified block. The modified block substantially preserves the continuity of the beginning and ending segments of the block with adjacent frames in the sequence. Thus, when the modified block is inserted in the sequence, no discontinuities are introduced and smooth intonation control is accomplished. The intonation control system provides for both pitch and duration control.

5717827, Feb 10, 1998

Apr 15, 1996

8/632121

Shankar Narayan - Palo Alto CA

Apple Computer, Inc. - Cupertino CA

G10L 502
G10L 900

395 269

A text-to-speech system includes a memory storing a set of quantization vectors. A first processing module is responsive to the sound segment codes generated in response to text in the sequence to identify strings of noise compensated quantization vectors for respective sound segment codes in the sequence. A decoder generates a speech data sequence in response to the strings of quantization vectors. An audio transducer is coupled to the processing modules, and generates sound in response to the speech data sequence. The quantization vectors represent a quantization of a sound segment data having a pre-emphasis to de-correlate the sound samples used for quantization and the quantization noise. In decompressing the sound segment data, an inverse linear prediction filter is applied to the identified strings of quantization vectors to reverse the pre-emphasis. Also, the quantization vectors represent quantization of results of pitch filtering of sound segment data.