Digital broadcasting receiving apparatus

• US 7,079,863 B2
• Filed: 09/19/2002
• Issued: 07/18/2006
• Est. Priority Date: 07/25/2001
• Status: Expired

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Chikaishi, Kouichi
• Primary Examiner(s): Vo, Nguyen T.
• Assistant Examiner(s): Le, Nhan T.
• Application Number:
  US10/246,726
• Publication Number:
  US 20040058656A1
• Time in Patent Office: 1,398 Days
• Field of Search: 455/3.01, 455/3.02, 455/3.04, 455/41.2, 455/41.3, 455/66.1, 455/74, 455/88, 455/306, 455/557, 455/3.06
• US Class Current: 455/557
• CPC Class Codes: G01C 21/3492 employing speed data or traffic data, e.g. real-time or historical traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968
• CPC Class Codes: G01C 21/3688 Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens
• CPC Class Codes: H04H 20/62 for transportation systems, e.g. in vehicles
• CPC Class Codes: H04H 2201/20 digital audio broadcasting [DAB]
• CPC Class Codes: H04H 60/80 characterised by transmission among terminal devices

Abstract

A digital broadcasting receiving apparatus has a fixed unit and a portable unit removably attached to the fixed unit. The fixed unit includes a tuner portion, a first memory, an audio decoder portion, an audio amplification/control portion and a first radio IF. The tuner portion receives digital broadcasting including encoded information. The first memory stores information included in the digital broadcasting. The audio decoder portion decodes audio information included in the digital broadcasting. The audio amplification/control portion outputs the audio information to a speaker. The first radio IF transmits information to the portable unit. The portable unit has a second radio IF, a second memory, a second CPU and a display/operation portion. The second radio IF receives information from the fixed unit. The second memory stores information. The second CPU decodes information. The display/operation portion displays the decoded information.

Claims

1. A digital broadcasting receiving apparatus, comprising:

a fixed unit; and

a portable unit removably attached to the fixed unit,

wherein the fixed unit has;

a receiving unit for receiving digital broadcasting including a plurality of kinds of encoded information;

a first decoding unit for decoding a specific kind of information included in the received digital broadcasting;

a first storage unit for storing the remaining kinds of information included in the received digital broadcasting;

a first output unit for outputting the information decoded by the first decoding unit; and

a first communication unit for transmitting the remaining kinds of information included in the received digital broadcasting to the portable unit; and

the portable unit has;

a second communication unit for receiving the information transmitted from the first communication unit;

a second storage unit for storing the information transmitted from the first communication unit;

a second decoding unit for decoding the remaining kinds of information transmitted from the first communication unit; and

a second output unit for outputting the information decoded by the second decoding unit.

2. The digital broadcasting receiving apparatus according to claim 1,

wherein the portable unit further includes a battery power supply for supplying power to the portable unit.

3. The digital broadcasting receiving apparatus according to claim 1, wherein processing required for decoding and outputting information in each of the fixed unit and the portable unit is reduced.

4. A digital broadcasting receiving apparatus, comprising:

a fixed unit; and

a portable unit removably attached to the fixed unit,

wherein the fixed unit has;

a receiving unit for receiving digital broadcasting including a plurality of kinds of encoded information;

a first decoding unit for decoding a specific kind of information included in the received digital broadcasting;

a first storage unit for storing the remaining kinds of information included in the received digital broadcasting;

a first output unit for outputting the information decoded by the first decoding unit; and

a first communication unit for transmitting the remaining kinds of information included in the received digital broadcasting to the portable unit; and

the portable unit has;

a second communication unit for receiving the information transmitted from the first communication unit;

a second storage unit for storing the information transmitted from the first communication unit;

a second decoding unit for decoding the information transmitted from the first communication unit;

a second output unit for outputting the information decoded by the second decoding unit;

wherein the digital broadcasting is broadcast encoded information by program unit on each of a plurality of channels;

wherein the digital broadcasting has service information including a channel, airtime and program contents of each program to be broadcast;

wherein the portable unit further includes an input unit operated by an operator;

wherein the second output unit has a display function;

wherein the first storage unit stores the received service information and program reservation unit;

wherein the first communication unit transmits the service information to the portable unit; and

wherein the second communication unit receives the service information from the first communication unit and transmits the program reservation information to the first communication unit;

wherein the second storage unit stores the received service information and the program reservation information;

wherein the second output unit displays the service information; and

wherein the portable unit creates the program reservation information including channels and airtimes based on an input from the input unit and the service information.

5. A digital broadcasting receiving apparatus, comprising:

a fixed unit; and

a portable unit removably attached to the fixed unit,

wherein the fixed unit has;

a receiving unit for receiving digital broadcasting including a plurality of kinds of encoded information;

a first decoding unit for decoding a specific kind of information included in the received digital broadcasting;

a first storage unit for storing the remaining kinds of information included in the received digital broadcasting;

a first output unit for outputting the information decoded by the first decoding unit; and

a first communication unit for transmitting the remaining kinds of information included in the received digital broadcasting to the portable unit; and

the portable unit has;

a second communication unit for receiving the information transmitted from the first communication unit;

a second storage unit for storing the information transmitted from the first communication unit;

a second decoding unit for decoding the information transmitted from the first communication unit;

a second output unit for outputting the information decoded by the second decoding unit;

wherein the digital broadcasting includes traffic information showing conditions of traffic routes;

wherein the fixed unit further includes a recording medium reading unit for reading information recorded on a recording medium demountably mounted in the fixed unit;

wherein the first communication unit transmits the traffic information and map information read from the recording medium by the recording medium reading unit;

wherein the portable unit further includes;

a position calculating unit for receiving position reference information from position information satellites and calculating position information regarding a current position of the portable unit based on the position reference information;

an input unit operated by an operator; and

a navigation unit for executing a route finding function to find a route from a starting point to a destination inputted from the inputting unit based on the map information, the traffic information, the starting point and the destination;

wherein the second output unit displays map, the current position, and the found route based on the map information, the position information, and the finding result;

wherein the second communication unit receives the map information and the traffic information from the first communication unit; and

wherein the second storage unit stores the map information.